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": "2025-04-14T21:52:57.792Z", "action": "click_product", "action_argument": "B01L9SD3K0"}
  {"timestamp": "2025-04-14T21:55:17.173Z", "action": "click_product", "action_argument": "B0838SMXFZ"}
  <|memory_end|>
  
  <|action_start|>
  {"timestamp": "2025-04-22T03:46:35.308Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-22T03:48:25.825Z", "action": "click", "action_argument": "quantity"}
  {"timestamp": "2025-04-22T03:48:28.616Z", "action": "click", "action_argument": "quantity"}
  <|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": ""}],
  "promotion_items": [{"title": "Neutrogena Ultra Sheer Face Liquid Mineral Sunscreen, Lightweight, Broad Spectrum SPF 70 Facial Sunscreen for Sensitive Skin Leaves a Silky, Non-Greasy Finish, Oxybenzone-Free, 1.4 fl. oz", "asin": "/promo/A2DORR75ODDLPG", "price": "$14.88", "quantity": ""},
  {"title": "Eucerin Sun Tinted Age Defense SPF 50 Face Sunscreen Lotion with Hyaluronic Acid, Hypoallergenic, Non-Comedogenic Tinted Sunscreen SPF 50 Free of Fragrance, Oxybenzone and Octinoxate, 2.5 Fl Oz Bottle", "asin": "B0CLVM67FV", "price": "$15.98", "quantity": ""},
  {"title": "Neutrogena Ultra Sheer Moisturizing Face Serum with Vitamin E & SPF 60, All Day Facial Sunscreen Serum with Broad Spectrum UVA/UVB Protection, Fragrance-Free, Oxybenzone-Free, 1.7 Fl Oz", "asin": "/promo/A3HM6OMCGCI2J9", "price": "$14.88", "quantity": ""},
  {"title": "Sun Bum Daily SPF 50 Sunscreen Body Lotion - Broad Spectrum Moisturizing Sunscreen with Vitamin E - Vegan and Hawaii 104 Act Compliant (Without Octinoxate & Oxybenzone) - Dermatologist Tested - 8 oz", "asin": "B0CNKXCL4X", "price": "$23.46", "quantity": ""},
  {"title": "Neutrogena Ultra Sheer Body Mist Sunscreen Spray, Broad Spectrum SPF 70, Lightweight Spray Sunscreen, Non-Greasy & Water Resistant, Oil-Free & Non-Comedogenic UVA/UVB, 5 oz, Pack of 3", "asin": "B076GZX3KL", "price": "$26.64", "quantity": ""},
  {"title": "Neutrogena Sport Active Defense SPF 70 Sunscreen Spray, Sweat & Water Resistant Spray Sunscreen with Broad Spectrum Protection for Sunburn Prevention, Oxybenzone-Free, Twin Pack, 5 oz, 2 Pack", "asin": "/promo/ATC703ZJ30NOA", "price": "$25.76", "quantity": ""},
  {"title": "La Roche-Posay Anthelios Melt-In Milk Sunscreen SPF 100, Sunscreen For Body & Face, Broad Spectrum SPF + Antioxidants, Oil Free, For Sun Sensitive Skin, Oxybenzone Free", "asin": "B07YGVSGMW", "price": "$24.99", "quantity": ""},
  {"title": "Neutrogena Clear Body SPF 50 Sunscreen Spray, Non-Greasy, Broad Spectrum Full Body Sunscreen Ideal for Oily Skin Moisturizes & Cools, Non-Comedogenic Spray Sunscreen, Oxybenzone-Free, 5 oz", "asin": "/promo/AAYFGG9ZNAXSR", "price": "$12.97", "quantity": ""},
  {"title": "CeraVe Moisturizing Cream, Body and Face Moisturizer for Dry Skin, Body Cream with Hyaluronic Acid and Ceramides, Daily Moisturizer, Oil-Free, Fragrance Free, Non-Comedogenic, 19 Ounce", "asin": "B00TTD9BRC", "price": "$14.83", "quantity": ""},
  {"title": "CeraVe PM Facial Moisturizing Lotion, Night Cream with Hyaluronic Acid and Niacinamide, Ultra-Lightweight, Oil-Free Moisturizer for Face, 3 Ounce", "asin": "B00365DABC", "price": "$12.89", "quantity": ""},
  {"title": "CeraVe AM Facial Moisturizing Lotion with SPF 30, Oil-Free Face Moisturizer with SPF, Formulated with Hyaluronic Acid, Niacinamide & Ceramides, Non-Comedogenic, Broad Spectrum Sunscreen, 3 Ounce", "asin": "B00F97FHAW", "price": "$12.89", "quantity": ""},
  {"title": "CeraVe Resurfacing Retinol Serum For Post Acne Marks, Formulated With Licorice Root Extract & Niacinamide, Brightening Serum & Pore Minimizer For Face, Post Acne Skin Barrier Repair, Non-Comedogenic", "asin": "B07VWSN95S", "price": "$15.69", "quantity": ""},
  {"title": "Neutrogena Ultra Sheer Dry-Touch Water Resistant and Non-Greasy Sunscreen Lotion with Broad Spectrum SPF 70, 3 Fl Oz (Pack of 1)", "asin": "/promo/ANIH8Y4GCK1EX", "price": "$8.88", "quantity": ""},
  {"title": "CeraVe Anti Aging Retinol Serum For Face, Encapsulated Retinol With Hyaluronic Acid, Niacinamide & Ceramides, Smooths Wrinkles & Fine Lines, Gentle Skin Brightening Serum, Fragrance Free, 1 Oz", "asin": "B07XJ7XWLW", "price": "$19.99", "quantity": ""}],
  "active_items": [{"title": "Neutrogena Sport Face Sunscreen SPF 70+, Oil-Free, 2.5 fl oz, Sweat & Water-Resistant, Broad-Spectrum UVA/UVB, Nourish & Restore Skin Balance, Oxybenzone Free Sunscreen For Face", "asin": "B001P92FMG", "delivery": "Overnight FREE delivery Overnight 7\u202fAM - 11\u202fAM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": true, "options": []},
  {"title": "CeraVe Hydrating Mineral Sunscreen SPF 30 with Sheer Tint, Tinted Mineral Sunscreen with Zinc Oxide & Titanium Dioxide, Blends Seamlessly For Healthy Glow, Medium, 1.7 Fluid Ounce", "asin": "B07YLKXV11", "delivery": "Overnight FREE delivery Overnight 7\u202fAM - 11\u202fAM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": true, "options": [{"Color": "Medium"}]},
  {"title": "Hanherry 100% Waterproof Mattress Protector Queen Size, Mattress Cover 3D Air Fabric Cooling Mattress Pad Cover Smooth Soft Breathable Noiseless, 8''-21'' Deep Pocket", "asin": "B09B9Z26RZ", "delivery": "Two-Day FREE delivery Wed, Apr 23 FREE Returns", "quantity": "1", "selected": true, "options": [{"Color": "White"}, {"Size": "Queen"}]},
  {"title": "Mattress Protector Queen Waterproof Mattress Cover Queen Size Mattress Pad Cover Breathable Noiseless Deep Pocket Bed Cover for 6-18\" Mattress Pad - Soft Washable Vinyl Free", "asin": "B093R34XY6", "delivery": "Two-Day FREE delivery Wed, Apr 23 FREE Returns", "quantity": "1", "selected": true, "options": [{"Size": "Queen"}, {"Style": "Bamboo Viscose"}]},
  {"title": "Sow Right Seeds - Luffa Gourd Seed for Planting - Non-GMO Heirloom Packet with Instructions to Plant a Home Vegetable Garden - Grow Your Own Loofah Sponge at Home - Show Off Unique Gourds (1)", "asin": "B07YBY374X", "delivery": "Two-Day FREE delivery Wed, Apr 23 FREE Returns", "quantity": "1", "selected": true, "options": [{"Item Package Quantity": "1"}]}],
  "saved_items": [{"title": "Jellycat Snow Dragon Stuffed Animal, Huge 26 inches - Mythical Plush Toy - Classic Children's Gift", "asin": "B09D9PLCDW", "options": []},
  {"title": "Ferrous Sulfate Heptahydrate - FeSO4*7H2O - 20% Iron - Very Soluble - 1 Pound", "asin": "B007ODUI76", "options": []},
  {"title": "Jellycat Snow Dragon Stuffed Animal, Large 19.5 inches - Mythical Plush Toy - Classic Children's Gift", "asin": "B08C4Y3BCD", "options": [{"Size": "Large"}]}]
  <|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": "2025-04-22T03:48:30.240Z", // 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": "2025-04-14T21:52:57.792Z", "action": "click_product", "action_argument": "B01L9SD3K0"}
  {"timestamp": "2025-04-14T21:55:17.173Z", "action": "click_product", "action_argument": "B0838SMXFZ"}
  <|memory_end|>
  
  <|action_start|>
  {"timestamp": "2025-04-22T03:46:35.308Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-22T03:48:25.825Z", "action": "click", "action_argument": "quantity"}
  {"timestamp": "2025-04-22T03:48:28.616Z", "action": "click", "action_argument": "quantity"}
  <|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": ""}],
  "promotion_items": [{"title": "Neutrogena Ultra Sheer Face Liquid Mineral Sunscreen, Lightweight, Broad Spectrum SPF 70 Facial Sunscreen for Sensitive Skin Leaves a Silky, Non-Greasy Finish, Oxybenzone-Free, 1.4 fl. oz", "asin": "/promo/A2DORR75ODDLPG", "price": "$14.88", "quantity": ""},
  {"title": "Eucerin Sun Tinted Age Defense SPF 50 Face Sunscreen Lotion with Hyaluronic Acid, Hypoallergenic, Non-Comedogenic Tinted Sunscreen SPF 50 Free of Fragrance, Oxybenzone and Octinoxate, 2.5 Fl Oz Bottle", "asin": "B0CLVM67FV", "price": "$15.98", "quantity": ""},
  {"title": "Neutrogena Ultra Sheer Moisturizing Face Serum with Vitamin E & SPF 60, All Day Facial Sunscreen Serum with Broad Spectrum UVA/UVB Protection, Fragrance-Free, Oxybenzone-Free, 1.7 Fl Oz", "asin": "/promo/A3HM6OMCGCI2J9", "price": "$14.88", "quantity": ""},
  {"title": "Sun Bum Daily SPF 50 Sunscreen Body Lotion - Broad Spectrum Moisturizing Sunscreen with Vitamin E - Vegan and Hawaii 104 Act Compliant (Without Octinoxate & Oxybenzone) - Dermatologist Tested - 8 oz", "asin": "B0CNKXCL4X", "price": "$23.46", "quantity": ""},
  {"title": "Neutrogena Ultra Sheer Body Mist Sunscreen Spray, Broad Spectrum SPF 70, Lightweight Spray Sunscreen, Non-Greasy & Water Resistant, Oil-Free & Non-Comedogenic UVA/UVB, 5 oz, Pack of 3", "asin": "B076GZX3KL", "price": "$26.64", "quantity": ""},
  {"title": "Neutrogena Sport Active Defense SPF 70 Sunscreen Spray, Sweat & Water Resistant Spray Sunscreen with Broad Spectrum Protection for Sunburn Prevention, Oxybenzone-Free, Twin Pack, 5 oz, 2 Pack", "asin": "/promo/ATC703ZJ30NOA", "price": "$25.76", "quantity": ""},
  {"title": "La Roche-Posay Anthelios Melt-In Milk Sunscreen SPF 100, Sunscreen For Body & Face, Broad Spectrum SPF + Antioxidants, Oil Free, For Sun Sensitive Skin, Oxybenzone Free", "asin": "B07YGVSGMW", "price": "$24.99", "quantity": ""},
  {"title": "Neutrogena Clear Body SPF 50 Sunscreen Spray, Non-Greasy, Broad Spectrum Full Body Sunscreen Ideal for Oily Skin Moisturizes & Cools, Non-Comedogenic Spray Sunscreen, Oxybenzone-Free, 5 oz", "asin": "/promo/AAYFGG9ZNAXSR", "price": "$12.97", "quantity": ""},
  {"title": "CeraVe Moisturizing Cream, Body and Face Moisturizer for Dry Skin, Body Cream with Hyaluronic Acid and Ceramides, Daily Moisturizer, Oil-Free, Fragrance Free, Non-Comedogenic, 19 Ounce", "asin": "B00TTD9BRC", "price": "$14.83", "quantity": ""},
  {"title": "CeraVe PM Facial Moisturizing Lotion, Night Cream with Hyaluronic Acid and Niacinamide, Ultra-Lightweight, Oil-Free Moisturizer for Face, 3 Ounce", "asin": "B00365DABC", "price": "$12.89", "quantity": ""},
  {"title": "CeraVe AM Facial Moisturizing Lotion with SPF 30, Oil-Free Face Moisturizer with SPF, Formulated with Hyaluronic Acid, Niacinamide & Ceramides, Non-Comedogenic, Broad Spectrum Sunscreen, 3 Ounce", "asin": "B00F97FHAW", "price": "$12.89", "quantity": ""},
  {"title": "CeraVe Resurfacing Retinol Serum For Post Acne Marks, Formulated With Licorice Root Extract & Niacinamide, Brightening Serum & Pore Minimizer For Face, Post Acne Skin Barrier Repair, Non-Comedogenic", "asin": "B07VWSN95S", "price": "$15.69", "quantity": ""},
  {"title": "Neutrogena Ultra Sheer Dry-Touch Water Resistant and Non-Greasy Sunscreen Lotion with Broad Spectrum SPF 70, 3 Fl Oz (Pack of 1)", "asin": "/promo/ANIH8Y4GCK1EX", "price": "$8.88", "quantity": ""},
  {"title": "CeraVe Anti Aging Retinol Serum For Face, Encapsulated Retinol With Hyaluronic Acid, Niacinamide & Ceramides, Smooths Wrinkles & Fine Lines, Gentle Skin Brightening Serum, Fragrance Free, 1 Oz", "asin": "B07XJ7XWLW", "price": "$19.99", "quantity": ""}],
  "active_items": [{"title": "Neutrogena Sport Face Sunscreen SPF 70+, Oil-Free, 2.5 fl oz, Sweat & Water-Resistant, Broad-Spectrum UVA/UVB, Nourish & Restore Skin Balance, Oxybenzone Free Sunscreen For Face", "asin": "B001P92FMG", "delivery": "Overnight FREE delivery Overnight 7\u202fAM - 11\u202fAM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": true, "options": []},
  {"title": "CeraVe Hydrating Mineral Sunscreen SPF 30 with Sheer Tint, Tinted Mineral Sunscreen with Zinc Oxide & Titanium Dioxide, Blends Seamlessly For Healthy Glow, Medium, 1.7 Fluid Ounce", "asin": "B07YLKXV11", "delivery": "Overnight FREE delivery Overnight 7\u202fAM - 11\u202fAM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": true, "options": [{"Color": "Medium"}]},
  {"title": "Hanherry 100% Waterproof Mattress Protector Queen Size, Mattress Cover 3D Air Fabric Cooling Mattress Pad Cover Smooth Soft Breathable Noiseless, 8''-21'' Deep Pocket", "asin": "B09B9Z26RZ", "delivery": "Two-Day FREE delivery Wed, Apr 23 FREE Returns", "quantity": "1", "selected": true, "options": [{"Color": "White"}, {"Size": "Queen"}]},
  {"title": "Mattress Protector Queen Waterproof Mattress Cover Queen Size Mattress Pad Cover Breathable Noiseless Deep Pocket Bed Cover for 6-18\" Mattress Pad - Soft Washable Vinyl Free", "asin": "B093R34XY6", "delivery": "Two-Day FREE delivery Wed, Apr 23 FREE Returns", "quantity": "1", "selected": true, "options": [{"Size": "Queen"}, {"Style": "Bamboo Viscose"}]},
  {"title": "Sow Right Seeds - Luffa Gourd Seed for Planting - Non-GMO Heirloom Packet with Instructions to Plant a Home Vegetable Garden - Grow Your Own Loofah Sponge at Home - Show Off Unique Gourds (1)", "asin": "B07YBY374X", "delivery": "Two-Day FREE delivery Wed, Apr 23 FREE Returns", "quantity": "1", "selected": true, "options": [{"Item Package Quantity": "1"}]}],
  "saved_items": [{"title": "Jellycat Snow Dragon Stuffed Animal, Huge 26 inches - Mythical Plush Toy - Classic Children's Gift", "asin": "B09D9PLCDW", "options": []},
  {"title": "Ferrous Sulfate Heptahydrate - FeSO4*7H2O - 20% Iron - Very Soluble - 1 Pound", "asin": "B007ODUI76", "options": []},
  {"title": "Jellycat Snow Dragon Stuffed Animal, Large 19.5 inches - Mythical Plush Toy - Classic Children's Gift", "asin": "B08C4Y3BCD", "options": [{"Size": "Large"}]}]
  <|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": "2025-04-22T03:48:30.240Z", // 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": "2025-04-14T21:52:57.792Z", "action": "click_product", "action_argument": "B01L9SD3K0"}
  {"timestamp": "2025-04-14T21:55:17.173Z", "action": "click_product", "action_argument": "B0838SMXFZ"}
  <|memory_end|>
  
  <|action_start|>
  {"timestamp": "2025-04-22T03:46:35.308Z", "action": "click", "action_argument": "nav_bar"}
  {"timestamp": "2025-04-22T03:48:25.825Z", "action": "click", "action_argument": "quantity"}
  {"timestamp": "2025-04-22T03:48:28.616Z", "action": "click", "action_argument": "quantity"}
  <|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": ""}],
  "promotion_items": [{"title": "Neutrogena Ultra Sheer Face Liquid Mineral Sunscreen, Lightweight, Broad Spectrum SPF 70 Facial Sunscreen for Sensitive Skin Leaves a Silky, Non-Greasy Finish, Oxybenzone-Free, 1.4 fl. oz", "asin": "/promo/A2DORR75ODDLPG", "price": "$14.88", "quantity": ""},
  {"title": "Eucerin Sun Tinted Age Defense SPF 50 Face Sunscreen Lotion with Hyaluronic Acid, Hypoallergenic, Non-Comedogenic Tinted Sunscreen SPF 50 Free of Fragrance, Oxybenzone and Octinoxate, 2.5 Fl Oz Bottle", "asin": "B0CLVM67FV", "price": "$15.98", "quantity": ""},
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  {"title": "Sun Bum Daily SPF 50 Sunscreen Body Lotion - Broad Spectrum Moisturizing Sunscreen with Vitamin E - Vegan and Hawaii 104 Act Compliant (Without Octinoxate & Oxybenzone) - Dermatologist Tested - 8 oz", "asin": "B0CNKXCL4X", "price": "$23.46", "quantity": ""},
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  {"title": "Hanherry 100% Waterproof Mattress Protector Queen Size, Mattress Cover 3D Air Fabric Cooling Mattress Pad Cover Smooth Soft Breathable Noiseless, 8''-21'' Deep Pocket", "asin": "B09B9Z26RZ", "delivery": "Two-Day FREE delivery Wed, Apr 23 FREE Returns", "quantity": "1", "selected": true, "options": [{"Color": "White"}, {"Size": "Queen"}]},
  {"title": "Mattress Protector Queen Waterproof Mattress Cover Queen Size Mattress Pad Cover Breathable Noiseless Deep Pocket Bed Cover for 6-18\" Mattress Pad - Soft Washable Vinyl Free", "asin": "B093R34XY6", "delivery": "Two-Day FREE delivery Wed, Apr 23 FREE Returns", "quantity": "1", "selected": true, "options": [{"Size": "Queen"}, {"Style": "Bamboo Viscose"}]},
  {"title": "Sow Right Seeds - Luffa Gourd Seed for Planting - Non-GMO Heirloom Packet with Instructions to Plant a Home Vegetable Garden - Grow Your Own Loofah Sponge at Home - Show Off Unique Gourds (1)", "asin": "B07YBY374X", "delivery": "Two-Day FREE delivery Wed, Apr 23 FREE Returns", "quantity": "1", "selected": true, "options": [{"Item Package Quantity": "1"}]}],
  "saved_items": [{"title": "Jellycat Snow Dragon Stuffed Animal, Huge 26 inches - Mythical Plush Toy - Classic Children's Gift", "asin": "B09D9PLCDW", "options": []},
  {"title": "Ferrous Sulfate Heptahydrate - FeSO4*7H2O - 20% Iron - Very Soluble - 1 Pound", "asin": "B007ODUI76", "options": []},
  {"title": "Jellycat Snow Dragon Stuffed Animal, Large 19.5 inches - Mythical Plush Toy - Classic Children's Gift", "asin": "B08C4Y3BCD", "options": [{"Size": "Large"}]}]
  <|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": "2025-04-22T03:48:30.240Z", // 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>
  