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": "2025-04-08T03:13:12.736Z", "action": "input", "action_argument": "502 "}
  {"timestamp": "2025-04-08T03:13:12.820Z", "action": "click", "action_argument": "suggested_term"}
  {"timestamp": "2025-04-08T03:13:59.261Z", "action": "click_product", "action_argument": "B00C32MHJU"}
  {"timestamp": "2025-04-08T03:14:08.165Z", "action": "purchase", "action_argument": "B00C32MHJU"}
  {"timestamp": "2025-05-08T00:17:56.552Z", "action": "input", "action_argument": "\u5243\u987b\u5200"}
  {"timestamp": "2025-05-08T00:17:56.635Z", "action": "click", "action_argument": "suggested_term"}
  <|memory_end|>
  
  <|action_start|>
  {"timestamp": "2025-05-08T00:19:59.517Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-05-08T00:19:59.720Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-05-08T00:20:05.988Z", "action": "input", "action_argument": "pow"}
  {"timestamp": "2025-05-08T00:20:06.017Z", "action": "click", "action_argument": "suggested_term"}
  {"timestamp": "2025-05-08T00:20:21.167Z", "action": "click", "action_argument": "product_option"}
  <|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": ""}],
  "cart_items": [{"title": "Braun Electric Shaver for Men, Series 5 5150cs, Wet & Dry Shave, Turbo Shaving Mode, Foil Shaver, with Beard Trimmer, Body Groomer and Charging Stand, Blue", "asin": "B0CRMR45S2", "price": "$84.94", "quantity": "1"},
  {"title": "Braun Electric Razor for Men, Series 7 360 Flex Head Foil Shaver with Precision Beard Trimmer, Rechargeable, Wet & Dry and Travel Case, Black, 5 Piece Set", "asin": "B07Z8K3MQS", "price": "$129.94", "quantity": "1"},
  {"title": "VIWIK Reusable Chopsticks 5 Pairs Premium Fiberglass Chop sticks \u2013 Lightweight Non-Slip Design Easy to Clean Dishwasher Safe 9 1/2 Inches \u2013 Gift Set", "asin": "B08R8DHTD5", "price": "$12.99", "quantity": "1"},
  {"title": "HOUAGI LED TV Stand for Televisions up to 65 Inchs,Modern Entertainment Center with Storage Drawer and Glass Shelf, TV Console Table for Living Room,Bedroom (Black, 63in)", "asin": "B0BVVWBR7F", "price": "$89.99", "quantity": "1"},
  {"title": "HUANUO 63\u2033 Dual Motor L-Shaped Standing Desk, Built-in Power Outlets, Electric Height Adjustable Corner Computer Desk, Large Power Strip Holder, Sit Stand Up Desk with 3 Preset Heights, Black", "asin": "B0CP9GVVKP", "price": "$249.99", "quantity": "1"}],
  "product_details": [{"asin": "B0015R36SK"},
  {"title": "Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 6 Pound (Packaging May Vary)"},
  {"price": "$49.94"},
  {"bullet_list": "HIGH CALORIE WEIGHT GAINER: More than 1,200 calories per 2-scoop serving 50 grams of blended protein per 2-scoop serving Over 250 grams of carbohydrates per 2-scoop serving With over 20 vitamins and minerals including Vitamin C and Zinc to provide immune support MORE VERSATILITY: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential"}],
  "product_quantity": [{"quantity": "1"},
  {"quantity": "1"}],
  "product_options": [{"Flavor Name": "Chocolate"},
  {"Size": "8 Servings (Pack of 1)"}],
  "promotion_items": [{"title": "NAKED Double Chocolate Mass - 1,260 Calories, 50G Protein, Nothing Artificial. All Natural Weight Gainer Protein Powder - 8Lb Bulk, GMO Free, Gluten Free & Soy Free", "asin": "B0CLM76BRS", "price": "$69.99", "quantity": ""},
  {"title": "MuscleTech High Protein Mass Gainer for Men & Women - Protein Powder Shakes for Weight Gain, Muscle Building & Recovery with Creatine Monohydrate - Vanilla Milkshake, 5.15 Pound", "asin": "B08VPF6683", "price": "$35.95", "quantity": ""},
  {"title": "Nutricost Mass Gainer Double Chocolate Flavor, 6.7 LBS, 50 Grams of Protein Per Serving - Non-GMO & Gluten Free", "asin": "B0CQPMW574", "price": "$44.95", "quantity": ""},
  {"title": "Nutricost Mass Gainer Cookies N Cream Flavor, 6.9 LBS, 50 Grams of Protein Per Serving - Non-GMO", "asin": "B0CQPP1M4Y", "price": "$44.95", "quantity": ""},
  {"title": "Muscletech Whey Protein Powder (Vanilla Cream, 4 Pound) - Nitro-Tech Muscle Building Formula with Whey Protein Isolate & Peptides - 30g of Protein, 3g of Creatine & 6.6g of BCAA", "asin": "B008IC0Z8Y", "price": "$68.99", "quantity": ""},
  {"title": "Optimum Nutrition Gold Standard 100% Whey Protein Powder, Double Rich Chocolate, 2 Pound (Packaging May Vary)", "asin": "B002DYIZH6", "price": "$35.99", "quantity": ""},
  {"title": "Muscletech High-Protein Mass Gainer (Vanilla Milkshake, 6LB) - Mass Tech Extreme 2000 Mass Gainer Protein Powder Supplement - Weight Gainer for Increase Muscle, Enhanced Recovery & Strength", "asin": "B0B9PLQVPP", "price": "$53.67", "quantity": ""},
  {"title": "NAKED Mass - Natural Weight Gainer Protein Powder - 8 LB Bulk, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per Serving", "asin": "B00UIAEOO0", "price": "$69.99", "quantity": ""},
  {"title": "NAKED Vegan Mass - Vanilla Vegan Weight Gainer - 1,230 Calories, Non-GMO, Soy & Gluten Free, No Artificial Ingredients - 8LB Bulk - 11 Servings", "asin": "B083VTWMP8", "price": "$69.99", "quantity": ""},
  {"title": "Gains in Bulk Instantized Creatine \u00ae Monohydrate for Women and Men, Soluble Pre Workout Powder, Supports Muscle Building, Strength and Performance, Bodybuilding Supplements, Unflavored, 100 Servings", "asin": "B0186H4VMG", "price": "$89.00", "quantity": ""},
  {"title": "MuscleTech High Protein Mass Gainer for Men & Women - Protein Powder Shakes for Weight Gain, Muscle Building & Recovery with Creatine Monohydrate - Vanilla Milkshake, 5.15 Pound", "asin": "B08VPF6683", "price": "$35.95", "quantity": ""},
  {"title": "Muscle Feast 100% Grass-Fed Whey Protein, Pastured Raised Hormone Free All Natural, Unflavored, 5lb", "asin": "B005071QCO", "price": "$99.90", "quantity": ""},
  {"title": "Organic Vegan Vanilla Protein Powder with Probiotics, BCAAs, 30g Plant Protein, NSF Certified, Gluten Free & Sport, Non GMO, Garden of Life Sport Protein Powder - 19 Servings", "asin": "B01N7DTD98", "price": "$40.48", "quantity": ""},
  {"title": "Nutricost Whey Protein Powder, Vanilla, 5 pounds - Whey Protein Concentrate", "asin": "B01KITQEPM", "price": "$57.95", "quantity": ""}],
  "comparison_items": [{"title": "Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 6 Pound (Packaging May Vary)", "asin": "B0015R36SK", "price": "$49.94"},
  {"title": "NOW Foods Sports Mass Gainer Protein Powder, Creamy Chocolate Flavor, Pea and Whey Protein Blend, 5.5 lbs.", "asin": "B0D71GD61V", "price": "$48.74"},
  {"title": "Sunshine Biopharma Extreme Mass Weight Gainer Muscle Builder, 10 lb (4.54 kg) with Less Sugar for Intense Workout Training Made of high Calorie Fortified whey Protein (Chocolate)", "asin": "B07RZ235B7", "price": "$62.69"},
  {"title": "Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Vanilla, 6 Pound (Packaging May Vary)", "asin": "B0015R6ZPQ", "price": "$47.94"},
  {"title": "Nutricost Mass Gainer Cookies N Cream Flavor, 6.9 LBS, 50 Grams of Protein Per Serving - Non-GMO", "asin": "B0CQPP1M4Y", "price": "$44.95"},
  {"title": "Nutricost Mass Gainer Double Chocolate Flavor, 6.7 LBS, 50 Grams of Protein Per Serving - Non-GMO & Gluten Free", "asin": "B0CQPMW574", "price": "$44.95"}]
  <|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": "2025-05-08T00:21:03.639Z", // 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": "2025-04-08T03:13:12.736Z", "action": "input", "action_argument": "502 "}
  {"timestamp": "2025-04-08T03:13:12.820Z", "action": "click", "action_argument": "suggested_term"}
  {"timestamp": "2025-04-08T03:13:59.261Z", "action": "click_product", "action_argument": "B00C32MHJU"}
  {"timestamp": "2025-04-08T03:14:08.165Z", "action": "purchase", "action_argument": "B00C32MHJU"}
  {"timestamp": "2025-05-08T00:17:56.552Z", "action": "input", "action_argument": "\u5243\u987b\u5200"}
  {"timestamp": "2025-05-08T00:17:56.635Z", "action": "click", "action_argument": "suggested_term"}
  <|memory_end|>
  
  <|action_start|>
  {"timestamp": "2025-05-08T00:19:59.517Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-05-08T00:19:59.720Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-05-08T00:20:05.988Z", "action": "input", "action_argument": "pow"}
  {"timestamp": "2025-05-08T00:20:06.017Z", "action": "click", "action_argument": "suggested_term"}
  {"timestamp": "2025-05-08T00:20:21.167Z", "action": "click", "action_argument": "product_option"}
  <|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": ""}],
  "cart_items": [{"title": "Braun Electric Shaver for Men, Series 5 5150cs, Wet & Dry Shave, Turbo Shaving Mode, Foil Shaver, with Beard Trimmer, Body Groomer and Charging Stand, Blue", "asin": "B0CRMR45S2", "price": "$84.94", "quantity": "1"},
  {"title": "Braun Electric Razor for Men, Series 7 360 Flex Head Foil Shaver with Precision Beard Trimmer, Rechargeable, Wet & Dry and Travel Case, Black, 5 Piece Set", "asin": "B07Z8K3MQS", "price": "$129.94", "quantity": "1"},
  {"title": "VIWIK Reusable Chopsticks 5 Pairs Premium Fiberglass Chop sticks \u2013 Lightweight Non-Slip Design Easy to Clean Dishwasher Safe 9 1/2 Inches \u2013 Gift Set", "asin": "B08R8DHTD5", "price": "$12.99", "quantity": "1"},
  {"title": "HOUAGI LED TV Stand for Televisions up to 65 Inchs,Modern Entertainment Center with Storage Drawer and Glass Shelf, TV Console Table for Living Room,Bedroom (Black, 63in)", "asin": "B0BVVWBR7F", "price": "$89.99", "quantity": "1"},
  {"title": "HUANUO 63\u2033 Dual Motor L-Shaped Standing Desk, Built-in Power Outlets, Electric Height Adjustable Corner Computer Desk, Large Power Strip Holder, Sit Stand Up Desk with 3 Preset Heights, Black", "asin": "B0CP9GVVKP", "price": "$249.99", "quantity": "1"}],
  "product_details": [{"asin": "B0015R36SK"},
  {"title": "Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 6 Pound (Packaging May Vary)"},
  {"price": "$49.94"},
  {"bullet_list": "HIGH CALORIE WEIGHT GAINER: More than 1,200 calories per 2-scoop serving 50 grams of blended protein per 2-scoop serving Over 250 grams of carbohydrates per 2-scoop serving With over 20 vitamins and minerals including Vitamin C and Zinc to provide immune support MORE VERSATILITY: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential"}],
  "product_quantity": [{"quantity": "1"},
  {"quantity": "1"}],
  "product_options": [{"Flavor Name": "Chocolate"},
  {"Size": "8 Servings (Pack of 1)"}],
  "promotion_items": [{"title": "NAKED Double Chocolate Mass - 1,260 Calories, 50G Protein, Nothing Artificial. All Natural Weight Gainer Protein Powder - 8Lb Bulk, GMO Free, Gluten Free & Soy Free", "asin": "B0CLM76BRS", "price": "$69.99", "quantity": ""},
  {"title": "MuscleTech High Protein Mass Gainer for Men & Women - Protein Powder Shakes for Weight Gain, Muscle Building & Recovery with Creatine Monohydrate - Vanilla Milkshake, 5.15 Pound", "asin": "B08VPF6683", "price": "$35.95", "quantity": ""},
  {"title": "Nutricost Mass Gainer Double Chocolate Flavor, 6.7 LBS, 50 Grams of Protein Per Serving - Non-GMO & Gluten Free", "asin": "B0CQPMW574", "price": "$44.95", "quantity": ""},
  {"title": "Nutricost Mass Gainer Cookies N Cream Flavor, 6.9 LBS, 50 Grams of Protein Per Serving - Non-GMO", "asin": "B0CQPP1M4Y", "price": "$44.95", "quantity": ""},
  {"title": "Muscletech Whey Protein Powder (Vanilla Cream, 4 Pound) - Nitro-Tech Muscle Building Formula with Whey Protein Isolate & Peptides - 30g of Protein, 3g of Creatine & 6.6g of BCAA", "asin": "B008IC0Z8Y", "price": "$68.99", "quantity": ""},
  {"title": "Optimum Nutrition Gold Standard 100% Whey Protein Powder, Double Rich Chocolate, 2 Pound (Packaging May Vary)", "asin": "B002DYIZH6", "price": "$35.99", "quantity": ""},
  {"title": "Muscletech High-Protein Mass Gainer (Vanilla Milkshake, 6LB) - Mass Tech Extreme 2000 Mass Gainer Protein Powder Supplement - Weight Gainer for Increase Muscle, Enhanced Recovery & Strength", "asin": "B0B9PLQVPP", "price": "$53.67", "quantity": ""},
  {"title": "NAKED Mass - Natural Weight Gainer Protein Powder - 8 LB Bulk, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per Serving", "asin": "B00UIAEOO0", "price": "$69.99", "quantity": ""},
  {"title": "NAKED Vegan Mass - Vanilla Vegan Weight Gainer - 1,230 Calories, Non-GMO, Soy & Gluten Free, No Artificial Ingredients - 8LB Bulk - 11 Servings", "asin": "B083VTWMP8", "price": "$69.99", "quantity": ""},
  {"title": "Gains in Bulk Instantized Creatine \u00ae Monohydrate for Women and Men, Soluble Pre Workout Powder, Supports Muscle Building, Strength and Performance, Bodybuilding Supplements, Unflavored, 100 Servings", "asin": "B0186H4VMG", "price": "$89.00", "quantity": ""},
  {"title": "MuscleTech High Protein Mass Gainer for Men & Women - Protein Powder Shakes for Weight Gain, Muscle Building & Recovery with Creatine Monohydrate - Vanilla Milkshake, 5.15 Pound", "asin": "B08VPF6683", "price": "$35.95", "quantity": ""},
  {"title": "Muscle Feast 100% Grass-Fed Whey Protein, Pastured Raised Hormone Free All Natural, Unflavored, 5lb", "asin": "B005071QCO", "price": "$99.90", "quantity": ""},
  {"title": "Organic Vegan Vanilla Protein Powder with Probiotics, BCAAs, 30g Plant Protein, NSF Certified, Gluten Free & Sport, Non GMO, Garden of Life Sport Protein Powder - 19 Servings", "asin": "B01N7DTD98", "price": "$40.48", "quantity": ""},
  {"title": "Nutricost Whey Protein Powder, Vanilla, 5 pounds - Whey Protein Concentrate", "asin": "B01KITQEPM", "price": "$57.95", "quantity": ""}],
  "comparison_items": [{"title": "Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 6 Pound (Packaging May Vary)", "asin": "B0015R36SK", "price": "$49.94"},
  {"title": "NOW Foods Sports Mass Gainer Protein Powder, Creamy Chocolate Flavor, Pea and Whey Protein Blend, 5.5 lbs.", "asin": "B0D71GD61V", "price": "$48.74"},
  {"title": "Sunshine Biopharma Extreme Mass Weight Gainer Muscle Builder, 10 lb (4.54 kg) with Less Sugar for Intense Workout Training Made of high Calorie Fortified whey Protein (Chocolate)", "asin": "B07RZ235B7", "price": "$62.69"},
  {"title": "Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Vanilla, 6 Pound (Packaging May Vary)", "asin": "B0015R6ZPQ", "price": "$47.94"},
  {"title": "Nutricost Mass Gainer Cookies N Cream Flavor, 6.9 LBS, 50 Grams of Protein Per Serving - Non-GMO", "asin": "B0CQPP1M4Y", "price": "$44.95"},
  {"title": "Nutricost Mass Gainer Double Chocolate Flavor, 6.7 LBS, 50 Grams of Protein Per Serving - Non-GMO & Gluten Free", "asin": "B0CQPMW574", "price": "$44.95"}]
  <|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": "2025-05-08T00:21:03.639Z", // 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": "2025-04-08T03:13:12.736Z", "action": "input", "action_argument": "502 "}
  {"timestamp": "2025-04-08T03:13:12.820Z", "action": "click", "action_argument": "suggested_term"}
  {"timestamp": "2025-04-08T03:13:59.261Z", "action": "click_product", "action_argument": "B00C32MHJU"}
  {"timestamp": "2025-04-08T03:14:08.165Z", "action": "purchase", "action_argument": "B00C32MHJU"}
  {"timestamp": "2025-05-08T00:17:56.552Z", "action": "input", "action_argument": "\u5243\u987b\u5200"}
  {"timestamp": "2025-05-08T00:17:56.635Z", "action": "click", "action_argument": "suggested_term"}
  <|memory_end|>
  
  <|action_start|>
  {"timestamp": "2025-05-08T00:19:59.517Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-05-08T00:19:59.720Z", "action": "click", "action_argument": "search"}
  {"timestamp": "2025-05-08T00:20:05.988Z", "action": "input", "action_argument": "pow"}
  {"timestamp": "2025-05-08T00:20:06.017Z", "action": "click", "action_argument": "suggested_term"}
  {"timestamp": "2025-05-08T00:20:21.167Z", "action": "click", "action_argument": "product_option"}
  <|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": ""}],
  "cart_items": [{"title": "Braun Electric Shaver for Men, Series 5 5150cs, Wet & Dry Shave, Turbo Shaving Mode, Foil Shaver, with Beard Trimmer, Body Groomer and Charging Stand, Blue", "asin": "B0CRMR45S2", "price": "$84.94", "quantity": "1"},
  {"title": "Braun Electric Razor for Men, Series 7 360 Flex Head Foil Shaver with Precision Beard Trimmer, Rechargeable, Wet & Dry and Travel Case, Black, 5 Piece Set", "asin": "B07Z8K3MQS", "price": "$129.94", "quantity": "1"},
  {"title": "VIWIK Reusable Chopsticks 5 Pairs Premium Fiberglass Chop sticks \u2013 Lightweight Non-Slip Design Easy to Clean Dishwasher Safe 9 1/2 Inches \u2013 Gift Set", "asin": "B08R8DHTD5", "price": "$12.99", "quantity": "1"},
  {"title": "HOUAGI LED TV Stand for Televisions up to 65 Inchs,Modern Entertainment Center with Storage Drawer and Glass Shelf, TV Console Table for Living Room,Bedroom (Black, 63in)", "asin": "B0BVVWBR7F", "price": "$89.99", "quantity": "1"},
  {"title": "HUANUO 63\u2033 Dual Motor L-Shaped Standing Desk, Built-in Power Outlets, Electric Height Adjustable Corner Computer Desk, Large Power Strip Holder, Sit Stand Up Desk with 3 Preset Heights, Black", "asin": "B0CP9GVVKP", "price": "$249.99", "quantity": "1"}],
  "product_details": [{"asin": "B0015R36SK"},
  {"title": "Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 6 Pound (Packaging May Vary)"},
  {"price": "$49.94"},
  {"bullet_list": "HIGH CALORIE WEIGHT GAINER: More than 1,200 calories per 2-scoop serving 50 grams of blended protein per 2-scoop serving Over 250 grams of carbohydrates per 2-scoop serving With over 20 vitamins and minerals including Vitamin C and Zinc to provide immune support MORE VERSATILITY: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential"}],
  "product_quantity": [{"quantity": "1"},
  {"quantity": "1"}],
  "product_options": [{"Flavor Name": "Chocolate"},
  {"Size": "8 Servings (Pack of 1)"}],
  "promotion_items": [{"title": "NAKED Double Chocolate Mass - 1,260 Calories, 50G Protein, Nothing Artificial. All Natural Weight Gainer Protein Powder - 8Lb Bulk, GMO Free, Gluten Free & Soy Free", "asin": "B0CLM76BRS", "price": "$69.99", "quantity": ""},
  {"title": "MuscleTech High Protein Mass Gainer for Men & Women - Protein Powder Shakes for Weight Gain, Muscle Building & Recovery with Creatine Monohydrate - Vanilla Milkshake, 5.15 Pound", "asin": "B08VPF6683", "price": "$35.95", "quantity": ""},
  {"title": "Nutricost Mass Gainer Double Chocolate Flavor, 6.7 LBS, 50 Grams of Protein Per Serving - Non-GMO & Gluten Free", "asin": "B0CQPMW574", "price": "$44.95", "quantity": ""},
  {"title": "Nutricost Mass Gainer Cookies N Cream Flavor, 6.9 LBS, 50 Grams of Protein Per Serving - Non-GMO", "asin": "B0CQPP1M4Y", "price": "$44.95", "quantity": ""},
  {"title": "Muscletech Whey Protein Powder (Vanilla Cream, 4 Pound) - Nitro-Tech Muscle Building Formula with Whey Protein Isolate & Peptides - 30g of Protein, 3g of Creatine & 6.6g of BCAA", "asin": "B008IC0Z8Y", "price": "$68.99", "quantity": ""},
  {"title": "Optimum Nutrition Gold Standard 100% Whey Protein Powder, Double Rich Chocolate, 2 Pound (Packaging May Vary)", "asin": "B002DYIZH6", "price": "$35.99", "quantity": ""},
  {"title": "Muscletech High-Protein Mass Gainer (Vanilla Milkshake, 6LB) - Mass Tech Extreme 2000 Mass Gainer Protein Powder Supplement - Weight Gainer for Increase Muscle, Enhanced Recovery & Strength", "asin": "B0B9PLQVPP", "price": "$53.67", "quantity": ""},
  {"title": "NAKED Mass - Natural Weight Gainer Protein Powder - 8 LB Bulk, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per Serving", "asin": "B00UIAEOO0", "price": "$69.99", "quantity": ""},
  {"title": "NAKED Vegan Mass - Vanilla Vegan Weight Gainer - 1,230 Calories, Non-GMO, Soy & Gluten Free, No Artificial Ingredients - 8LB Bulk - 11 Servings", "asin": "B083VTWMP8", "price": "$69.99", "quantity": ""},
  {"title": "Gains in Bulk Instantized Creatine \u00ae Monohydrate for Women and Men, Soluble Pre Workout Powder, Supports Muscle Building, Strength and Performance, Bodybuilding Supplements, Unflavored, 100 Servings", "asin": "B0186H4VMG", "price": "$89.00", "quantity": ""},
  {"title": "MuscleTech High Protein Mass Gainer for Men & Women - Protein Powder Shakes for Weight Gain, Muscle Building & Recovery with Creatine Monohydrate - Vanilla Milkshake, 5.15 Pound", "asin": "B08VPF6683", "price": "$35.95", "quantity": ""},
  {"title": "Muscle Feast 100% Grass-Fed Whey Protein, Pastured Raised Hormone Free All Natural, Unflavored, 5lb", "asin": "B005071QCO", "price": "$99.90", "quantity": ""},
  {"title": "Organic Vegan Vanilla Protein Powder with Probiotics, BCAAs, 30g Plant Protein, NSF Certified, Gluten Free & Sport, Non GMO, Garden of Life Sport Protein Powder - 19 Servings", "asin": "B01N7DTD98", "price": "$40.48", "quantity": ""},
  {"title": "Nutricost Whey Protein Powder, Vanilla, 5 pounds - Whey Protein Concentrate", "asin": "B01KITQEPM", "price": "$57.95", "quantity": ""}],
  "comparison_items": [{"title": "Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 6 Pound (Packaging May Vary)", "asin": "B0015R36SK", "price": "$49.94"},
  {"title": "NOW Foods Sports Mass Gainer Protein Powder, Creamy Chocolate Flavor, Pea and Whey Protein Blend, 5.5 lbs.", "asin": "B0D71GD61V", "price": "$48.74"},
  {"title": "Sunshine Biopharma Extreme Mass Weight Gainer Muscle Builder, 10 lb (4.54 kg) with Less Sugar for Intense Workout Training Made of high Calorie Fortified whey Protein (Chocolate)", "asin": "B07RZ235B7", "price": "$62.69"},
  {"title": "Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Vanilla, 6 Pound (Packaging May Vary)", "asin": "B0015R6ZPQ", "price": "$47.94"},
  {"title": "Nutricost Mass Gainer Cookies N Cream Flavor, 6.9 LBS, 50 Grams of Protein Per Serving - Non-GMO", "asin": "B0CQPP1M4Y", "price": "$44.95"},
  {"title": "Nutricost Mass Gainer Double Chocolate Flavor, 6.7 LBS, 50 Grams of Protein Per Serving - Non-GMO & Gluten Free", "asin": "B0CQPMW574", "price": "$44.95"}]
  <|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": "2025-05-08T00:21:03.639Z", // 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>
  