prompt.content: <|im_start|>system
  You are a helpful assistant that is capable of understanding and predicting customer shopping behaviors on Amazon. You first think about the reasoning process in the mind and then predict the customer actions and action argument. The reasoning process and the predicted action and action argument are enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think>reasoning process here</think><answer>predicted action and action argument here</answer>.
  <|im_end|>
  <|im_start|>user
  You are given a customer behavior trajectory on Amazon. This trajectory include the customer long-term information (enclosed between <|memory_start|> and <|memory_end|>), previous actions the customer has taken with timestamps (enclosed between <|action_start|> and <|action_end|>), and current observations describing what the customer sees on Amazon (e.g., a search results page, a product detail page) (enclosed between <|observation_start|> and <|observation_end|>). 
  Now your task is to predict the immediate next action and action argument (i.e., input_text, product_asin, or click_type) of this shopper by analyzing shopper shopping behaviors. The available action space and action argument space are provided between <|actionspace_start|> and <|actionspace_end|> to help guide your prediction. Please first analyze the customer's behavior patterns within the  <think> </think> section, then provide your prediction within the <answer> </answer> section, ensuring your prediction falls within the specified action and argument spaces. 
  
  <|actionspace_start|>
  Available actions are represented in JSON format. There are four primary action types with their corresponding action arguments:
  1. input:
  Action: Type text into an input field to search for a specific product. 
  Action Argument: the input_text is the specific text entered by the customer.
  {
  "timestamp": "timestamp",
  "action": "input",
  "action_argument": "input_text",
  }
  
  2. click:
  Action: Click on a UI interface button or clickable element on the Amazon website.
  Action Argument: The clickable_name is one of the UI interface buttons or clickable elements including "review", "search", "product_option", "other", "nav_bar", "quantity", "page_related", "suggested_term", "cart_side_bar", "cart_page_select", and "filter". Select one of these buttons or clickable elements as action argument.
  {
  "timestamp": "timestamp",
  "action": "click",
  "action_argument": "clickable_name",
  }
  
  3. click_product:
  Action: Click on product links or product images.
  Action Argument: the Amazon Standard Identification Number (i.e., product_asin) of the clicked product.
  {
  "timestamp": "timestamp",
  "action": "click_product",
  "action_argument": "product_asin",
  }
  
  4. purchase:
  Action: indicate intent to purchase by clicking on any purchase-related button. This includes clicking "Add to Cart", "Buy Now", "Set Subscription", or "Checkout" buttons for specific products. 
  Action Argument: the Amazon Standard Identification Number (i.e., product_asin) of the product being purchased.
  {
  "timestamp": "timestamp",
  "action": "purchase",
  "action_argument": "product_asin",
  }
  <|actionspace_end|>
  
  <|memory_start|>
  {"timestamp": "2025-03-27T00:55:40.828Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-03-27T00:55:43.515Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-03-27T00:55:52.469Z", "action": "click_product", "action_argument": "B0CZB9Z477"}
  {"timestamp": "2025-03-27T00:56:43.323Z", "action": "click", "action_argument": "cart_side_bar"}
  {"timestamp": "2025-03-27T00:56:48.045Z", "action": "click", "action_argument": "quantity"}
  {"timestamp": "2025-03-27T00:56:50.352Z", "action": "purchase", "action_argument": "B0CZB9Z477, B0798DVT68"}
  {"timestamp": "2025-04-01T02:11:25.066Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T02:11:29.324Z", "action": "click", "action_argument": "quantity"}
  {"timestamp": "2025-04-01T02:11:31.873Z", "action": "click", "action_argument": "quantity"}
  {"timestamp": "2025-04-01T02:11:35.429Z", "action": "click_product", "action_argument": "B0CKV7B49Z"}
  {"timestamp": "2025-04-01T02:11:53.601Z", "action": "click", "action_argument": "other"}
  {"timestamp": "2025-04-01T02:11:57.194Z", "action": "purchase", "action_argument": "B0CKV7B49Z"}
  {"timestamp": "2025-04-01T23:13:36.525Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-04-01T23:14:06.270Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-04-01T23:14:37.328Z", "action": "click_product", "action_argument": "B0CFPJYX7P"}
  {"timestamp": "2025-04-01T23:14:42.390Z", "action": "click", "action_argument": "product_option"}
  {"timestamp": "2025-04-01T23:14:45.023Z", "action": "click", "action_argument": "product_option"}
  {"timestamp": "2025-04-01T23:14:50.458Z", "action": "click", "action_argument": "product_option"}
  {"timestamp": "2025-04-01T23:15:49.203Z", "action": "click", "action_argument": "other"}
  {"timestamp": "2025-04-01T23:16:00.251Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T23:16:16.063Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T23:16:18.681Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T23:16:20.149Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T23:16:21.524Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T23:17:29.065Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-03T22:16:30.054Z", "action": "click", "action_argument": "other"}
  {"timestamp": "2025-04-03T22:16:31.472Z", "action": "click", "action_argument": "other"}
  {"timestamp": "2025-04-03T23:13:36.068Z", "action": "click_product", "action_argument": "B0BNQFCPZY"}
  {"timestamp": "2025-04-03T23:28:05.133Z", "action": "purchase", "action_argument": "B0BNQFCPZY"}
  {"timestamp": "2025-04-10T17:07:04.811Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-04-10T17:08:02.346Z", "action": "input", "action_argument": "kindle"}
  {"timestamp": "2025-04-10T17:08:02.478Z", "action": "click", "action_argument": "suggested_term"}
  {"timestamp": "2025-04-10T17:08:09.252Z", "action": "click_product", "action_argument": "B0CFPJYX7P"}
  <|memory_end|>
  
  <|action_start|>
  {"timestamp": "2025-04-11T18:58:26.008Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-04-11T18:58:28.581Z", "action": "click", "action_argument": "search"}
  <|action_end|>
  
  <|observation_start|>
  Your context will be the JSON string containing page metadata of the Amazon page you are looking at. This Amazon page is the context you observed after performing your last action.
  "search_term": [{"term": "kindle"}],
  "cart_items": [{"title": "Pattern Language for Game Design", "asin": "0367367726", "price": "$55.99", "quantity": "1"}],
  "search_results": [{"title": "All-new Amazon Kindle Paperwhite (16 GB) \u2013 Our fastest Kindle ever, with new 7\" glare-free display and weeks of battery life \u2013 Black", "asin": "B0CFPJYX7P", "price": "$159.99", "delivery": " One-Day FREE delivery Tomorrow, Apr 12"},
  {"title": "Amazon Kindle (16 GB) - Lightest and most compact Kindle, now with faster page turns, and higher contrast ratio, for an enhanced reading experience - Matcha", "asin": "B0CNVCQZG1", "price": "$109.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "All-new Amazon Kindle Paperwhite Signature Edition (32 GB) \u2013 Our fastest Kindle with auto-adjusting front light, wireless charging, and weeks of battery life \u2013 Metallic Jade", "asin": "B0CFPP8C33", "price": "$199.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Introducing Amazon Kindle Colorsoft Signature Edition (32 GB) \u2013 With color display, auto-adjusting front light, wireless charging, and long battery life - Metallic Black", "asin": "B0CN3XR57P", "price": "$279.99", "delivery": " Overnight FREE delivery Overnight 7 AM - 11 AM"},
  {"title": "Amazon Fire HD 10 tablet (newest model) built for relaxation, 10.1\" vibrant Full HD screen, octa-core processor, 3 GB RAM, 32 GB, Black", "asin": "B0BHZT5S12", "price": "$139.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Amazon Kindle Scribe (64 GB) - Redesigned display with uniform borders. Now write directly on books and documents. With built-in notebook summarization. Includes Premium Pen - Tungsten", "asin": "B0CZ9T2C6B", "price": "$449.99", "delivery": " One-Day FREE delivery Tomorrow, Apr 12"},
  {"title": "All-new Amazon Kindle Paperwhite Kids (16 GB) \u2013 larger 7\" glare-free display \u2013 Kids read an average of 1+ hour per day with Kindle \u2013 Cyber City", "asin": "B0CFPNV5KM", "price": "$179.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Kindle Paperwhite \u2013 (Previous Generation - 2018 Release) Waterproof with 2X The Storage \u2013 Ad-Supported (Used Condition)", "asin": "B09V8F3P91", "price": "$49.99", "delivery": "FREE delivery Thu, Apr 17 for Prime members"},
  {"title": "New Amazon Kindle Kids (16 GB) - If it breaks, we will replace it, includes ad-free books and cover, with glare-free display, faster page turns - Space Whale", "asin": "B0CNVBQK38", "price": "$129.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Like-New Amazon Fire HD 10 tablet (newest model) built for relaxation, 10.1\" vibrant Full HD screen, octa-core processor, 3 GB RAM, 32 GB, Black", "asin": "B0BL5RZMLR", "price": "$69.99", "delivery": " Overnight FREE delivery Overnight 7 AM - 11 AM"},
  {"title": "Kindle Essentials Bundle including Kindle (2024 release) - Matcha, Fabric Cover - Matcha, and Power Adapter", "asin": "B0D9ZWBFWQ", "price": "$146.97", "delivery": " Same-Day Delivery Today 5 PM - 10 PM"},
  {"title": "New Amazon Fire HD 8 tablet, 8\u201d HD Display, 3GB memory, 32GB, designed for portable entertainment, Black, (2024 release)", "asin": "B0CVDN4QS6", "price": "$99.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Amazon Fire Max 11 tablet (newest model) vivid 11\u201d display, all-in-one for streaming, reading, and gaming, 14-hour battery life, optional stylus and keyboard, 128 GB, Gray, without lockscreen ads", "asin": "B0B2SFTGQ6", "price": "$234.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Amazon Kindle Paperwhite (16 GB) \u2013 Now with a larger display, adjustable warm light, increased battery life, and faster page turns \u2013 Black", "asin": "B09TMN58KL", "price": "$149.99", "delivery": " Two-Day FREE delivery Sun, Apr 13"},
  {"title": "Like-New Amazon Kindle (16 GB) - Lightest and most compact Kindle, with glare-free display, faster page turns, adjustable front light, and long battery life - Matcha", "asin": "B0CP32KPTM", "price": "$98.99", "delivery": "FREE delivery Tue, Apr 15 for Prime members"},
  {"title": "International Version - Kindle \u2013 The lightest and most compact Kindle, now with a 6\u201d 300 ppi high-resolution display, and 2x the storage \u2013 Denim", "asin": "B09SWV1FSS", "price": "$119.99"}]
  <|observation_end|>
  
  # Output Format
  Please provide your final answer in JSON format within <answer></answer> tags using the following schema (Note that the thinking process should be within 250 words and give enough output space for final answer):
  "<answer>
  {
  "timestamp": "2025-04-11T18:58:38.042Z", // the timestamp when this action occurs.
  "action": "string", // select one plausible action from: input, click_product, purchase, or click.
  "acion_argument": "string", // select appropriate value based on action type: input_text, product_asin, clickable_name.
  }
  </answer>"
  
  <|im_end|>
  <|im_start|>assistant
  <think>
  
prompt.role: user
question: <|im_start|>system
  You are a helpful assistant that is capable of understanding and predicting customer shopping behaviors on Amazon. You first think about the reasoning process in the mind and then predict the customer actions and action argument. The reasoning process and the predicted action and action argument are enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think>reasoning process here</think><answer>predicted action and action argument here</answer>.
  <|im_end|>
  <|im_start|>user
  You are given a customer behavior trajectory on Amazon. This trajectory include the customer long-term information (enclosed between <|memory_start|> and <|memory_end|>), previous actions the customer has taken with timestamps (enclosed between <|action_start|> and <|action_end|>), and current observations describing what the customer sees on Amazon (e.g., a search results page, a product detail page) (enclosed between <|observation_start|> and <|observation_end|>). 
  Now your task is to predict the immediate next action and action argument (i.e., input_text, product_asin, or click_type) of this shopper by analyzing shopper shopping behaviors. The available action space and action argument space are provided between <|actionspace_start|> and <|actionspace_end|> to help guide your prediction. Please first analyze the customer's behavior patterns within the  <think> </think> section, then provide your prediction within the <answer> </answer> section, ensuring your prediction falls within the specified action and argument spaces. 
  
  <|actionspace_start|>
  Available actions are represented in JSON format. There are four primary action types with their corresponding action arguments:
  1. input:
  Action: Type text into an input field to search for a specific product. 
  Action Argument: the input_text is the specific text entered by the customer.
  {
  "timestamp": "timestamp",
  "action": "input",
  "action_argument": "input_text",
  }
  
  2. click:
  Action: Click on a UI interface button or clickable element on the Amazon website.
  Action Argument: The clickable_name is one of the UI interface buttons or clickable elements including "review", "search", "product_option", "other", "nav_bar", "quantity", "page_related", "suggested_term", "cart_side_bar", "cart_page_select", and "filter". Select one of these buttons or clickable elements as action argument.
  {
  "timestamp": "timestamp",
  "action": "click",
  "action_argument": "clickable_name",
  }
  
  3. click_product:
  Action: Click on product links or product images.
  Action Argument: the Amazon Standard Identification Number (i.e., product_asin) of the clicked product.
  {
  "timestamp": "timestamp",
  "action": "click_product",
  "action_argument": "product_asin",
  }
  
  4. purchase:
  Action: indicate intent to purchase by clicking on any purchase-related button. This includes clicking "Add to Cart", "Buy Now", "Set Subscription", or "Checkout" buttons for specific products. 
  Action Argument: the Amazon Standard Identification Number (i.e., product_asin) of the product being purchased.
  {
  "timestamp": "timestamp",
  "action": "purchase",
  "action_argument": "product_asin",
  }
  <|actionspace_end|>
  
  <|memory_start|>
  {"timestamp": "2025-03-27T00:55:40.828Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-03-27T00:55:43.515Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-03-27T00:55:52.469Z", "action": "click_product", "action_argument": "B0CZB9Z477"}
  {"timestamp": "2025-03-27T00:56:43.323Z", "action": "click", "action_argument": "cart_side_bar"}
  {"timestamp": "2025-03-27T00:56:48.045Z", "action": "click", "action_argument": "quantity"}
  {"timestamp": "2025-03-27T00:56:50.352Z", "action": "purchase", "action_argument": "B0CZB9Z477, B0798DVT68"}
  {"timestamp": "2025-04-01T02:11:25.066Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T02:11:29.324Z", "action": "click", "action_argument": "quantity"}
  {"timestamp": "2025-04-01T02:11:31.873Z", "action": "click", "action_argument": "quantity"}
  {"timestamp": "2025-04-01T02:11:35.429Z", "action": "click_product", "action_argument": "B0CKV7B49Z"}
  {"timestamp": "2025-04-01T02:11:53.601Z", "action": "click", "action_argument": "other"}
  {"timestamp": "2025-04-01T02:11:57.194Z", "action": "purchase", "action_argument": "B0CKV7B49Z"}
  {"timestamp": "2025-04-01T23:13:36.525Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-04-01T23:14:06.270Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-04-01T23:14:37.328Z", "action": "click_product", "action_argument": "B0CFPJYX7P"}
  {"timestamp": "2025-04-01T23:14:42.390Z", "action": "click", "action_argument": "product_option"}
  {"timestamp": "2025-04-01T23:14:45.023Z", "action": "click", "action_argument": "product_option"}
  {"timestamp": "2025-04-01T23:14:50.458Z", "action": "click", "action_argument": "product_option"}
  {"timestamp": "2025-04-01T23:15:49.203Z", "action": "click", "action_argument": "other"}
  {"timestamp": "2025-04-01T23:16:00.251Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T23:16:16.063Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T23:16:18.681Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T23:16:20.149Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T23:16:21.524Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T23:17:29.065Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-03T22:16:30.054Z", "action": "click", "action_argument": "other"}
  {"timestamp": "2025-04-03T22:16:31.472Z", "action": "click", "action_argument": "other"}
  {"timestamp": "2025-04-03T23:13:36.068Z", "action": "click_product", "action_argument": "B0BNQFCPZY"}
  {"timestamp": "2025-04-03T23:28:05.133Z", "action": "purchase", "action_argument": "B0BNQFCPZY"}
  {"timestamp": "2025-04-10T17:07:04.811Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-04-10T17:08:02.346Z", "action": "input", "action_argument": "kindle"}
  {"timestamp": "2025-04-10T17:08:02.478Z", "action": "click", "action_argument": "suggested_term"}
  {"timestamp": "2025-04-10T17:08:09.252Z", "action": "click_product", "action_argument": "B0CFPJYX7P"}
  <|memory_end|>
  
  <|action_start|>
  {"timestamp": "2025-04-11T18:58:26.008Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-04-11T18:58:28.581Z", "action": "click", "action_argument": "search"}
  <|action_end|>
  
  <|observation_start|>
  Your context will be the JSON string containing page metadata of the Amazon page you are looking at. This Amazon page is the context you observed after performing your last action.
  "search_term": [{"term": "kindle"}],
  "cart_items": [{"title": "Pattern Language for Game Design", "asin": "0367367726", "price": "$55.99", "quantity": "1"}],
  "search_results": [{"title": "All-new Amazon Kindle Paperwhite (16 GB) \u2013 Our fastest Kindle ever, with new 7\" glare-free display and weeks of battery life \u2013 Black", "asin": "B0CFPJYX7P", "price": "$159.99", "delivery": " One-Day FREE delivery Tomorrow, Apr 12"},
  {"title": "Amazon Kindle (16 GB) - Lightest and most compact Kindle, now with faster page turns, and higher contrast ratio, for an enhanced reading experience - Matcha", "asin": "B0CNVCQZG1", "price": "$109.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "All-new Amazon Kindle Paperwhite Signature Edition (32 GB) \u2013 Our fastest Kindle with auto-adjusting front light, wireless charging, and weeks of battery life \u2013 Metallic Jade", "asin": "B0CFPP8C33", "price": "$199.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Introducing Amazon Kindle Colorsoft Signature Edition (32 GB) \u2013 With color display, auto-adjusting front light, wireless charging, and long battery life - Metallic Black", "asin": "B0CN3XR57P", "price": "$279.99", "delivery": " Overnight FREE delivery Overnight 7 AM - 11 AM"},
  {"title": "Amazon Fire HD 10 tablet (newest model) built for relaxation, 10.1\" vibrant Full HD screen, octa-core processor, 3 GB RAM, 32 GB, Black", "asin": "B0BHZT5S12", "price": "$139.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Amazon Kindle Scribe (64 GB) - Redesigned display with uniform borders. Now write directly on books and documents. With built-in notebook summarization. Includes Premium Pen - Tungsten", "asin": "B0CZ9T2C6B", "price": "$449.99", "delivery": " One-Day FREE delivery Tomorrow, Apr 12"},
  {"title": "All-new Amazon Kindle Paperwhite Kids (16 GB) \u2013 larger 7\" glare-free display \u2013 Kids read an average of 1+ hour per day with Kindle \u2013 Cyber City", "asin": "B0CFPNV5KM", "price": "$179.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Kindle Paperwhite \u2013 (Previous Generation - 2018 Release) Waterproof with 2X The Storage \u2013 Ad-Supported (Used Condition)", "asin": "B09V8F3P91", "price": "$49.99", "delivery": "FREE delivery Thu, Apr 17 for Prime members"},
  {"title": "New Amazon Kindle Kids (16 GB) - If it breaks, we will replace it, includes ad-free books and cover, with glare-free display, faster page turns - Space Whale", "asin": "B0CNVBQK38", "price": "$129.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Like-New Amazon Fire HD 10 tablet (newest model) built for relaxation, 10.1\" vibrant Full HD screen, octa-core processor, 3 GB RAM, 32 GB, Black", "asin": "B0BL5RZMLR", "price": "$69.99", "delivery": " Overnight FREE delivery Overnight 7 AM - 11 AM"},
  {"title": "Kindle Essentials Bundle including Kindle (2024 release) - Matcha, Fabric Cover - Matcha, and Power Adapter", "asin": "B0D9ZWBFWQ", "price": "$146.97", "delivery": " Same-Day Delivery Today 5 PM - 10 PM"},
  {"title": "New Amazon Fire HD 8 tablet, 8\u201d HD Display, 3GB memory, 32GB, designed for portable entertainment, Black, (2024 release)", "asin": "B0CVDN4QS6", "price": "$99.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Amazon Fire Max 11 tablet (newest model) vivid 11\u201d display, all-in-one for streaming, reading, and gaming, 14-hour battery life, optional stylus and keyboard, 128 GB, Gray, without lockscreen ads", "asin": "B0B2SFTGQ6", "price": "$234.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Amazon Kindle Paperwhite (16 GB) \u2013 Now with a larger display, adjustable warm light, increased battery life, and faster page turns \u2013 Black", "asin": "B09TMN58KL", "price": "$149.99", "delivery": " Two-Day FREE delivery Sun, Apr 13"},
  {"title": "Like-New Amazon Kindle (16 GB) - Lightest and most compact Kindle, with glare-free display, faster page turns, adjustable front light, and long battery life - Matcha", "asin": "B0CP32KPTM", "price": "$98.99", "delivery": "FREE delivery Tue, Apr 15 for Prime members"},
  {"title": "International Version - Kindle \u2013 The lightest and most compact Kindle, now with a 6\u201d 300 ppi high-resolution display, and 2x the storage \u2013 Denim", "asin": "B09SWV1FSS", "price": "$119.99"}]
  <|observation_end|>
  
  # Output Format
  Please provide your final answer in JSON format within <answer></answer> tags using the following schema (Note that the thinking process should be within 250 words and give enough output space for final answer):
  "<answer>
  {
  "timestamp": "2025-04-11T18:58:38.042Z", // the timestamp when this action occurs.
  "action": "string", // select one plausible action from: input, click_product, purchase, or click.
  "acion_argument": "string", // select appropriate value based on action type: input_text, product_asin, clickable_name.
  }
  </answer>"
  
  <|im_end|>
  <|im_start|>assistant
  <think>
  
extra_info.question: <|im_start|>system
  You are a helpful assistant that is capable of understanding and predicting customer shopping behaviors on Amazon. You first think about the reasoning process in the mind and then predict the customer actions and action argument. The reasoning process and the predicted action and action argument are enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think>reasoning process here</think><answer>predicted action and action argument here</answer>.
  <|im_end|>
  <|im_start|>user
  You are given a customer behavior trajectory on Amazon. This trajectory include the customer long-term information (enclosed between <|memory_start|> and <|memory_end|>), previous actions the customer has taken with timestamps (enclosed between <|action_start|> and <|action_end|>), and current observations describing what the customer sees on Amazon (e.g., a search results page, a product detail page) (enclosed between <|observation_start|> and <|observation_end|>). 
  Now your task is to predict the immediate next action and action argument (i.e., input_text, product_asin, or click_type) of this shopper by analyzing shopper shopping behaviors. The available action space and action argument space are provided between <|actionspace_start|> and <|actionspace_end|> to help guide your prediction. Please first analyze the customer's behavior patterns within the  <think> </think> section, then provide your prediction within the <answer> </answer> section, ensuring your prediction falls within the specified action and argument spaces. 
  
  <|actionspace_start|>
  Available actions are represented in JSON format. There are four primary action types with their corresponding action arguments:
  1. input:
  Action: Type text into an input field to search for a specific product. 
  Action Argument: the input_text is the specific text entered by the customer.
  {
  "timestamp": "timestamp",
  "action": "input",
  "action_argument": "input_text",
  }
  
  2. click:
  Action: Click on a UI interface button or clickable element on the Amazon website.
  Action Argument: The clickable_name is one of the UI interface buttons or clickable elements including "review", "search", "product_option", "other", "nav_bar", "quantity", "page_related", "suggested_term", "cart_side_bar", "cart_page_select", and "filter". Select one of these buttons or clickable elements as action argument.
  {
  "timestamp": "timestamp",
  "action": "click",
  "action_argument": "clickable_name",
  }
  
  3. click_product:
  Action: Click on product links or product images.
  Action Argument: the Amazon Standard Identification Number (i.e., product_asin) of the clicked product.
  {
  "timestamp": "timestamp",
  "action": "click_product",
  "action_argument": "product_asin",
  }
  
  4. purchase:
  Action: indicate intent to purchase by clicking on any purchase-related button. This includes clicking "Add to Cart", "Buy Now", "Set Subscription", or "Checkout" buttons for specific products. 
  Action Argument: the Amazon Standard Identification Number (i.e., product_asin) of the product being purchased.
  {
  "timestamp": "timestamp",
  "action": "purchase",
  "action_argument": "product_asin",
  }
  <|actionspace_end|>
  
  <|memory_start|>
  {"timestamp": "2025-03-27T00:55:40.828Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-03-27T00:55:43.515Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-03-27T00:55:52.469Z", "action": "click_product", "action_argument": "B0CZB9Z477"}
  {"timestamp": "2025-03-27T00:56:43.323Z", "action": "click", "action_argument": "cart_side_bar"}
  {"timestamp": "2025-03-27T00:56:48.045Z", "action": "click", "action_argument": "quantity"}
  {"timestamp": "2025-03-27T00:56:50.352Z", "action": "purchase", "action_argument": "B0CZB9Z477, B0798DVT68"}
  {"timestamp": "2025-04-01T02:11:25.066Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T02:11:29.324Z", "action": "click", "action_argument": "quantity"}
  {"timestamp": "2025-04-01T02:11:31.873Z", "action": "click", "action_argument": "quantity"}
  {"timestamp": "2025-04-01T02:11:35.429Z", "action": "click_product", "action_argument": "B0CKV7B49Z"}
  {"timestamp": "2025-04-01T02:11:53.601Z", "action": "click", "action_argument": "other"}
  {"timestamp": "2025-04-01T02:11:57.194Z", "action": "purchase", "action_argument": "B0CKV7B49Z"}
  {"timestamp": "2025-04-01T23:13:36.525Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-04-01T23:14:06.270Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-04-01T23:14:37.328Z", "action": "click_product", "action_argument": "B0CFPJYX7P"}
  {"timestamp": "2025-04-01T23:14:42.390Z", "action": "click", "action_argument": "product_option"}
  {"timestamp": "2025-04-01T23:14:45.023Z", "action": "click", "action_argument": "product_option"}
  {"timestamp": "2025-04-01T23:14:50.458Z", "action": "click", "action_argument": "product_option"}
  {"timestamp": "2025-04-01T23:15:49.203Z", "action": "click", "action_argument": "other"}
  {"timestamp": "2025-04-01T23:16:00.251Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T23:16:16.063Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T23:16:18.681Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T23:16:20.149Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T23:16:21.524Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-01T23:17:29.065Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-03T22:16:30.054Z", "action": "click", "action_argument": "other"}
  {"timestamp": "2025-04-03T22:16:31.472Z", "action": "click", "action_argument": "other"}
  {"timestamp": "2025-04-03T23:13:36.068Z", "action": "click_product", "action_argument": "B0BNQFCPZY"}
  {"timestamp": "2025-04-03T23:28:05.133Z", "action": "purchase", "action_argument": "B0BNQFCPZY"}
  {"timestamp": "2025-04-10T17:07:04.811Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-04-10T17:08:02.346Z", "action": "input", "action_argument": "kindle"}
  {"timestamp": "2025-04-10T17:08:02.478Z", "action": "click", "action_argument": "suggested_term"}
  {"timestamp": "2025-04-10T17:08:09.252Z", "action": "click_product", "action_argument": "B0CFPJYX7P"}
  <|memory_end|>
  
  <|action_start|>
  {"timestamp": "2025-04-11T18:58:26.008Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-04-11T18:58:28.581Z", "action": "click", "action_argument": "search"}
  <|action_end|>
  
  <|observation_start|>
  Your context will be the JSON string containing page metadata of the Amazon page you are looking at. This Amazon page is the context you observed after performing your last action.
  "search_term": [{"term": "kindle"}],
  "cart_items": [{"title": "Pattern Language for Game Design", "asin": "0367367726", "price": "$55.99", "quantity": "1"}],
  "search_results": [{"title": "All-new Amazon Kindle Paperwhite (16 GB) \u2013 Our fastest Kindle ever, with new 7\" glare-free display and weeks of battery life \u2013 Black", "asin": "B0CFPJYX7P", "price": "$159.99", "delivery": " One-Day FREE delivery Tomorrow, Apr 12"},
  {"title": "Amazon Kindle (16 GB) - Lightest and most compact Kindle, now with faster page turns, and higher contrast ratio, for an enhanced reading experience - Matcha", "asin": "B0CNVCQZG1", "price": "$109.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "All-new Amazon Kindle Paperwhite Signature Edition (32 GB) \u2013 Our fastest Kindle with auto-adjusting front light, wireless charging, and weeks of battery life \u2013 Metallic Jade", "asin": "B0CFPP8C33", "price": "$199.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Introducing Amazon Kindle Colorsoft Signature Edition (32 GB) \u2013 With color display, auto-adjusting front light, wireless charging, and long battery life - Metallic Black", "asin": "B0CN3XR57P", "price": "$279.99", "delivery": " Overnight FREE delivery Overnight 7 AM - 11 AM"},
  {"title": "Amazon Fire HD 10 tablet (newest model) built for relaxation, 10.1\" vibrant Full HD screen, octa-core processor, 3 GB RAM, 32 GB, Black", "asin": "B0BHZT5S12", "price": "$139.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Amazon Kindle Scribe (64 GB) - Redesigned display with uniform borders. Now write directly on books and documents. With built-in notebook summarization. Includes Premium Pen - Tungsten", "asin": "B0CZ9T2C6B", "price": "$449.99", "delivery": " One-Day FREE delivery Tomorrow, Apr 12"},
  {"title": "All-new Amazon Kindle Paperwhite Kids (16 GB) \u2013 larger 7\" glare-free display \u2013 Kids read an average of 1+ hour per day with Kindle \u2013 Cyber City", "asin": "B0CFPNV5KM", "price": "$179.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Kindle Paperwhite \u2013 (Previous Generation - 2018 Release) Waterproof with 2X The Storage \u2013 Ad-Supported (Used Condition)", "asin": "B09V8F3P91", "price": "$49.99", "delivery": "FREE delivery Thu, Apr 17 for Prime members"},
  {"title": "New Amazon Kindle Kids (16 GB) - If it breaks, we will replace it, includes ad-free books and cover, with glare-free display, faster page turns - Space Whale", "asin": "B0CNVBQK38", "price": "$129.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Like-New Amazon Fire HD 10 tablet (newest model) built for relaxation, 10.1\" vibrant Full HD screen, octa-core processor, 3 GB RAM, 32 GB, Black", "asin": "B0BL5RZMLR", "price": "$69.99", "delivery": " Overnight FREE delivery Overnight 7 AM - 11 AM"},
  {"title": "Kindle Essentials Bundle including Kindle (2024 release) - Matcha, Fabric Cover - Matcha, and Power Adapter", "asin": "B0D9ZWBFWQ", "price": "$146.97", "delivery": " Same-Day Delivery Today 5 PM - 10 PM"},
  {"title": "New Amazon Fire HD 8 tablet, 8\u201d HD Display, 3GB memory, 32GB, designed for portable entertainment, Black, (2024 release)", "asin": "B0CVDN4QS6", "price": "$99.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Amazon Fire Max 11 tablet (newest model) vivid 11\u201d display, all-in-one for streaming, reading, and gaming, 14-hour battery life, optional stylus and keyboard, 128 GB, Gray, without lockscreen ads", "asin": "B0B2SFTGQ6", "price": "$234.99", "delivery": " Same-Day FREE delivery Today 5 PM - 10 PM"},
  {"title": "Amazon Kindle Paperwhite (16 GB) \u2013 Now with a larger display, adjustable warm light, increased battery life, and faster page turns \u2013 Black", "asin": "B09TMN58KL", "price": "$149.99", "delivery": " Two-Day FREE delivery Sun, Apr 13"},
  {"title": "Like-New Amazon Kindle (16 GB) - Lightest and most compact Kindle, with glare-free display, faster page turns, adjustable front light, and long battery life - Matcha", "asin": "B0CP32KPTM", "price": "$98.99", "delivery": "FREE delivery Tue, Apr 15 for Prime members"},
  {"title": "International Version - Kindle \u2013 The lightest and most compact Kindle, now with a 6\u201d 300 ppi high-resolution display, and 2x the storage \u2013 Denim", "asin": "B09SWV1FSS", "price": "$119.99"}]
  <|observation_end|>
  
  # Output Format
  Please provide your final answer in JSON format within <answer></answer> tags using the following schema (Note that the thinking process should be within 250 words and give enough output space for final answer):
  "<answer>
  {
  "timestamp": "2025-04-11T18:58:38.042Z", // the timestamp when this action occurs.
  "action": "string", // select one plausible action from: input, click_product, purchase, or click.
  "acion_argument": "string", // select appropriate value based on action type: input_text, product_asin, clickable_name.
  }
  </answer>"
  
  <|im_end|>
  <|im_start|>assistant
  <think>
  