<|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 button or clickable element on the Amazon website.
Action Argument: The click_type is one of the buttons or clickable elements including review, product_option, other, nav_bar, quantity, page_related, suggested_term, cart_side_bar, cart_page_select, filter. Select one of these elements as action argument.
{
"timestamp": "timestamp",
"action": "click",
"action_argument": "click_type",
}

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": "2025-04-07T21:31:22.663Z", "action": "input", "action_argument": "coffee"}
{"timestamp": "2025-04-07T21:34:56.122Z", "action": "input", "action_argument": "coffee"}
{"timestamp": "2025-04-07T21:35:14.082Z", "action": "input", "action_argument": "muji matcah"}
{"timestamp": "2025-04-08T04:35:04.556Z", "action": "input", "action_argument": "swiffer"}
{"timestamp": "2025-04-08T04:35:28.074Z", "action": "click_product", "action_argument": "B00HZ6WFZA"}
{"timestamp": "2025-04-08T04:35:32.787Z", "action": "purchase", "action_argument": "B00HZ6WFZA"}
{"timestamp": "2025-04-16T15:10:19.937Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-16T15:10:59.353Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-16T15:11:07.215Z", "action": "purchase", "action_argument": "B09VKP2T7Z"}
{"timestamp": "2025-04-16T15:11:09.923Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-16T15:11:15.377Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-16T15:11:16.518Z", "action": "purchase", "action_argument": "B09VKP2T7Z"}
{"timestamp": "2025-04-20T23:35:54.798Z", "action": "input", "action_argument": "coffee"}
{"timestamp": "2025-04-20T23:37:47.230Z", "action": "input", "action_argument": "coffee"}
{"timestamp": "2025-04-20T23:37:47.258Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-27T01:24:31.708Z", "action": "input", "action_argument": "sephora"}
{"timestamp": "2025-04-27T01:24:37.336Z", "action": "input", "action_argument": "farmacy"}
{"timestamp": "2025-04-27T01:24:37.383Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-27T01:25:07.600Z", "action": "click", "action_argument": "product_option"}
{"timestamp": "2025-04-28T02:34:56.766Z", "action": "click_product", "action_argument": "B01AW1R2W0"}
{"timestamp": "2025-04-28T02:35:25.076Z", "action": "click_product", "action_argument": "B0CPQ7FHNY"}
{"timestamp": "2025-04-28T02:36:41.173Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:36:53.953Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:36:56.400Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:01.494Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:02.667Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:05.397Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:06.827Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:07.700Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:09.000Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:57.386Z", "action": "purchase", "action_argument": "B0849S7C5W"}
{"timestamp": "2025-04-28T02:38:03.196Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-28T02:38:15.105Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-28T02:38:23.133Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-28T02:38:27.727Z", "action": "purchase", "action_argument": "B0849S7C5W"}
{"timestamp": "2025-04-28T02:39:49.430Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-28T02:40:12.291Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-28T02:40:25.106Z", "action": "click_product", "action_argument": "B0849S7C5W"}
{"timestamp": "2025-04-28T02:41:03.816Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-28T02:41:08.463Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-28T02:43:24.149Z", "action": "click_product", "action_argument": "B0849S7C5W"}
{"timestamp": "2025-04-28T02:44:23.382Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-28T02:44:27.240Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-28T02:44:31.311Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-28T02:44:33.076Z", "action": "purchase", "action_argument": "B0849S7C5W"}
<|memory_end|>

<|action_start|>
{"timestamp": "2025-04-29T03:04:44.732Z", "action": "input", "action_argument": "move free"}
{"timestamp": "2025-04-29T03:10:18.429Z", "action": "click_product", "action_argument": "B001W2MBSE"}
{"timestamp": "2025-04-29T03:11:54.263Z", "action": "input", "action_argument": "move free"}
<|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": "move free"
}
  ],
  "product_details": [
    {
  "asin": "B001W2MBSE"
},
    {
  "title": "Move Free Advanced Glucosamine Chondroitin MSM Joint Support Supplement, Supports Mobility Comfort Strength Flexibility & Bone - 120 Tablets (40 servings)*"
},
    {
  "price": "$19.37"
},
    {
  "bullet_list": "DID YOU KNOW: Move Free Advanced , MSM combines heritage joint support ingredients with the clinically studied mineral complex Uniflex. Uniflex has been shown to help support joint comfort in as little as 14 days. WHAT IS IT: With Glucosamine, Chondroitin, Calcium Fructoborate & MSM, this product helps support the 5 signs of joint health joint mobility, comfort, strength, flexibility, and lubrication. PLUS it provides extra cartilage support. Flavor Type: Unflavored WHY MOVE FREE: Our scientists started in the fitness community, helping athletes who have experienced joint discomfort. Then it became obvious it wasn\u2019t just athletes who needed our help. Move Free has one goal in mind: Keep you moving EASIER TO SWALLOW TABLETS: Our exclusive state-of-the-art technology allows us to pack the same amount of our powerful ingredients into a smaller tablet, making it easier to take every day for the joint support you want. WHY GLUCOSAMINE: It is key for the formation of cartilage essential building block of joints. It helps contribute to healthy joint fluid that supports joint lubrication & smooth movement, while also supporting joint comfort, mobility and flexibility. WHY CHONDROITIN: Chondroitin is a building block of cartilage that supports joint strength by helping to resist compression in the joints. In the body, Chondroitin functions by attracting fluid to joints to support cushioning and lubrication. WHY MSM: Methylsulfonylmethane MSM is a souce of sulfur found in the body that is important in the formation of collagen in joints. Collagen is a vital part of your joints because it supports the structure of cartilage."
},
    {
  "bullet_list": "  HOW MUCH SHOULD I TAKE: Adults take three tablets once a day with a meal OR one tablet three times daily with meals. Move Free Advanced Glucosamine & Chondroitin, MSM provides 120 servings per box.  COMMONLY SEARCHED TOPICS: schiff moove move free movefree best joint cartilage knee immune bone health support supplements glucosamine chondroitin condroitin chondrotin hyaluronic acid HA msm joint lubrication comfort mobility strength flexibility  "
}
  ],
  "product_quantity": [
    {
  "quantity": "1"
}
  ],
  "product_options": [
    {
  "Item Package Quantity": "1"
}
  ],
  "promotion_items": [
    {"title": "Move Free Advanced Glucosamine Chondroitin MSM + Vitamin D3 Joint Support Supplement, Supports Mobility Comfort Strength Flexibility & Bone + Immune Health - 120 Tablets (60 servings)*", "asin": "B01ANSLIFY", "price": "$26.99", "quantity": ""},
    {"title": "Move Free Ultra Pro with Quadruple Action Joint Support - Type 2 Collagen MSM Calcium Fructoborate & Manganese - Supports Joint Cartiliage Bone Connective Tissue, 120 Tablets (30 servings)", "asin": "B08C96WHHS", "price": "$33.62", "quantity": ""},
    {"title": "Glucosamine Chondroitin MSM and Turmeric Supplement - Joint Support Supplement for Women & Men with Boswellia & Glucosamine Sulfate 1500 mg. Used for Cartilage & Joint Health & Flexibility 90 Capsules", "asin": "B01GVJK3XW", "price": "$28.97", "quantity": ""},
    {"title": "Move Free Advanced 5-Day Joint Support Supplement with TamaFlex (Turmeric & Tamarind), Glucosamine, & Vitamin D3 for Joint Health, Bone Strength, Cartilage, and Knee Range of Motion. 90 Count", "asin": "B0DWGV6FCQ", "price": "$17.99", "quantity": ""},
    {"title": "Nature's Base Glucosamine Chondroitin MSM Collagen - Joint Support Supplement for Mobility, Flexibility, & Comfort - with Turmeric, Boswellia - for Men & Women - 90 Capsules", "asin": "B0DGL7S21N", "price": "$17.59", "quantity": ""},
    {"title": "Osteo Bi-Flex Triple Strength(5), Glucosamine Chondroitin with Vitamin C Joint Health Supplement, Coated Tablets, 120 Count", "asin": "B00006FE3S", "price": "$17.95", "quantity": ""},
    {"title": "Nutramax Cosamin\u00ae DS Joint Health Supplement with Glucosamine & Chondroitin for Men\u2019s & Women's Joint Health, 180 Capsules", "asin": "B0889HVGNQ", "price": "$44.99", "quantity": ""}
  ]
}
<|observation_end|>

# Output Format
Please provide your response in JSON format within <answer></answer> tags using the following schema:
"<answer>
{
"timestamp": "2025-04-29T03:11:54.679Z", // the timestamp when this action occurs
"action": "string", // one of four action: input, click, click_product, purchase
"acion_argument": "string", // appropriate value based on action type: input_text, click_type (i.e., select one from review, product_option, other, nav_bar, quantity, page_related, suggested_term, cart_side_bar, cart_page_select, filter), or product_asin
}
</answer>"

<|im_end|>
<|im_start|>assistant
<think>

user
<|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 button or clickable element on the Amazon website.
Action Argument: The click_type is one of the buttons or clickable elements including review, product_option, other, nav_bar, quantity, page_related, suggested_term, cart_side_bar, cart_page_select, filter. Select one of these elements as action argument.
{
"timestamp": "timestamp",
"action": "click",
"action_argument": "click_type",
}

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": "2025-04-07T21:31:22.663Z", "action": "input", "action_argument": "coffee"}
{"timestamp": "2025-04-07T21:34:56.122Z", "action": "input", "action_argument": "coffee"}
{"timestamp": "2025-04-07T21:35:14.082Z", "action": "input", "action_argument": "muji matcah"}
{"timestamp": "2025-04-08T04:35:04.556Z", "action": "input", "action_argument": "swiffer"}
{"timestamp": "2025-04-08T04:35:28.074Z", "action": "click_product", "action_argument": "B00HZ6WFZA"}
{"timestamp": "2025-04-08T04:35:32.787Z", "action": "purchase", "action_argument": "B00HZ6WFZA"}
{"timestamp": "2025-04-16T15:10:19.937Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-16T15:10:59.353Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-16T15:11:07.215Z", "action": "purchase", "action_argument": "B09VKP2T7Z"}
{"timestamp": "2025-04-16T15:11:09.923Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-16T15:11:15.377Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-16T15:11:16.518Z", "action": "purchase", "action_argument": "B09VKP2T7Z"}
{"timestamp": "2025-04-20T23:35:54.798Z", "action": "input", "action_argument": "coffee"}
{"timestamp": "2025-04-20T23:37:47.230Z", "action": "input", "action_argument": "coffee"}
{"timestamp": "2025-04-20T23:37:47.258Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-27T01:24:31.708Z", "action": "input", "action_argument": "sephora"}
{"timestamp": "2025-04-27T01:24:37.336Z", "action": "input", "action_argument": "farmacy"}
{"timestamp": "2025-04-27T01:24:37.383Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-27T01:25:07.600Z", "action": "click", "action_argument": "product_option"}
{"timestamp": "2025-04-28T02:34:56.766Z", "action": "click_product", "action_argument": "B01AW1R2W0"}
{"timestamp": "2025-04-28T02:35:25.076Z", "action": "click_product", "action_argument": "B0CPQ7FHNY"}
{"timestamp": "2025-04-28T02:36:41.173Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:36:53.953Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:36:56.400Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:01.494Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:02.667Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:05.397Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:06.827Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:07.700Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:09.000Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:57.386Z", "action": "purchase", "action_argument": "B0849S7C5W"}
{"timestamp": "2025-04-28T02:38:03.196Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-28T02:38:15.105Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-28T02:38:23.133Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-28T02:38:27.727Z", "action": "purchase", "action_argument": "B0849S7C5W"}
{"timestamp": "2025-04-28T02:39:49.430Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-28T02:40:12.291Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-28T02:40:25.106Z", "action": "click_product", "action_argument": "B0849S7C5W"}
{"timestamp": "2025-04-28T02:41:03.816Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-28T02:41:08.463Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-28T02:43:24.149Z", "action": "click_product", "action_argument": "B0849S7C5W"}
{"timestamp": "2025-04-28T02:44:23.382Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-28T02:44:27.240Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-28T02:44:31.311Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-28T02:44:33.076Z", "action": "purchase", "action_argument": "B0849S7C5W"}
<|memory_end|>

<|action_start|>
{"timestamp": "2025-04-29T03:04:44.732Z", "action": "input", "action_argument": "move free"}
{"timestamp": "2025-04-29T03:10:18.429Z", "action": "click_product", "action_argument": "B001W2MBSE"}
{"timestamp": "2025-04-29T03:11:54.263Z", "action": "input", "action_argument": "move free"}
<|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": "move free"
}
  ],
  "product_details": [
    {
  "asin": "B001W2MBSE"
},
    {
  "title": "Move Free Advanced Glucosamine Chondroitin MSM Joint Support Supplement, Supports Mobility Comfort Strength Flexibility & Bone - 120 Tablets (40 servings)*"
},
    {
  "price": "$19.37"
},
    {
  "bullet_list": "DID YOU KNOW: Move Free Advanced , MSM combines heritage joint support ingredients with the clinically studied mineral complex Uniflex. Uniflex has been shown to help support joint comfort in as little as 14 days. WHAT IS IT: With Glucosamine, Chondroitin, Calcium Fructoborate & MSM, this product helps support the 5 signs of joint health joint mobility, comfort, strength, flexibility, and lubrication. PLUS it provides extra cartilage support. Flavor Type: Unflavored WHY MOVE FREE: Our scientists started in the fitness community, helping athletes who have experienced joint discomfort. Then it became obvious it wasn\u2019t just athletes who needed our help. Move Free has one goal in mind: Keep you moving EASIER TO SWALLOW TABLETS: Our exclusive state-of-the-art technology allows us to pack the same amount of our powerful ingredients into a smaller tablet, making it easier to take every day for the joint support you want. WHY GLUCOSAMINE: It is key for the formation of cartilage essential building block of joints. It helps contribute to healthy joint fluid that supports joint lubrication & smooth movement, while also supporting joint comfort, mobility and flexibility. WHY CHONDROITIN: Chondroitin is a building block of cartilage that supports joint strength by helping to resist compression in the joints. In the body, Chondroitin functions by attracting fluid to joints to support cushioning and lubrication. WHY MSM: Methylsulfonylmethane MSM is a souce of sulfur found in the body that is important in the formation of collagen in joints. Collagen is a vital part of your joints because it supports the structure of cartilage."
},
    {
  "bullet_list": "  HOW MUCH SHOULD I TAKE: Adults take three tablets once a day with a meal OR one tablet three times daily with meals. Move Free Advanced Glucosamine & Chondroitin, MSM provides 120 servings per box.  COMMONLY SEARCHED TOPICS: schiff moove move free movefree best joint cartilage knee immune bone health support supplements glucosamine chondroitin condroitin chondrotin hyaluronic acid HA msm joint lubrication comfort mobility strength flexibility  "
}
  ],
  "product_quantity": [
    {
  "quantity": "1"
}
  ],
  "product_options": [
    {
  "Item Package Quantity": "1"
}
  ],
  "promotion_items": [
    {"title": "Move Free Advanced Glucosamine Chondroitin MSM + Vitamin D3 Joint Support Supplement, Supports Mobility Comfort Strength Flexibility & Bone + Immune Health - 120 Tablets (60 servings)*", "asin": "B01ANSLIFY", "price": "$26.99", "quantity": ""},
    {"title": "Move Free Ultra Pro with Quadruple Action Joint Support - Type 2 Collagen MSM Calcium Fructoborate & Manganese - Supports Joint Cartiliage Bone Connective Tissue, 120 Tablets (30 servings)", "asin": "B08C96WHHS", "price": "$33.62", "quantity": ""},
    {"title": "Glucosamine Chondroitin MSM and Turmeric Supplement - Joint Support Supplement for Women & Men with Boswellia & Glucosamine Sulfate 1500 mg. Used for Cartilage & Joint Health & Flexibility 90 Capsules", "asin": "B01GVJK3XW", "price": "$28.97", "quantity": ""},
    {"title": "Move Free Advanced 5-Day Joint Support Supplement with TamaFlex (Turmeric & Tamarind), Glucosamine, & Vitamin D3 for Joint Health, Bone Strength, Cartilage, and Knee Range of Motion. 90 Count", "asin": "B0DWGV6FCQ", "price": "$17.99", "quantity": ""},
    {"title": "Nature's Base Glucosamine Chondroitin MSM Collagen - Joint Support Supplement for Mobility, Flexibility, & Comfort - with Turmeric, Boswellia - for Men & Women - 90 Capsules", "asin": "B0DGL7S21N", "price": "$17.59", "quantity": ""},
    {"title": "Osteo Bi-Flex Triple Strength(5), Glucosamine Chondroitin with Vitamin C Joint Health Supplement, Coated Tablets, 120 Count", "asin": "B00006FE3S", "price": "$17.95", "quantity": ""},
    {"title": "Nutramax Cosamin\u00ae DS Joint Health Supplement with Glucosamine & Chondroitin for Men\u2019s & Women's Joint Health, 180 Capsules", "asin": "B0889HVGNQ", "price": "$44.99", "quantity": ""}
  ]
}
<|observation_end|>

# Output Format
Please provide your response in JSON format within <answer></answer> tags using the following schema:
"<answer>
{
"timestamp": "2025-04-29T03:11:54.679Z", // the timestamp when this action occurs
"action": "string", // one of four action: input, click, click_product, purchase
"acion_argument": "string", // appropriate value based on action type: input_text, click_type (i.e., select one from review, product_option, other, nav_bar, quantity, page_related, suggested_term, cart_side_bar, cart_page_select, filter), or product_asin
}
</answer>"

<|im_end|>
<|im_start|>assistant
<think>

<|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 button or clickable element on the Amazon website.
Action Argument: The click_type is one of the buttons or clickable elements including review, product_option, other, nav_bar, quantity, page_related, suggested_term, cart_side_bar, cart_page_select, filter. Select one of these elements as action argument.
{
"timestamp": "timestamp",
"action": "click",
"action_argument": "click_type",
}

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": "2025-04-07T21:31:22.663Z", "action": "input", "action_argument": "coffee"}
{"timestamp": "2025-04-07T21:34:56.122Z", "action": "input", "action_argument": "coffee"}
{"timestamp": "2025-04-07T21:35:14.082Z", "action": "input", "action_argument": "muji matcah"}
{"timestamp": "2025-04-08T04:35:04.556Z", "action": "input", "action_argument": "swiffer"}
{"timestamp": "2025-04-08T04:35:28.074Z", "action": "click_product", "action_argument": "B00HZ6WFZA"}
{"timestamp": "2025-04-08T04:35:32.787Z", "action": "purchase", "action_argument": "B00HZ6WFZA"}
{"timestamp": "2025-04-16T15:10:19.937Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-16T15:10:59.353Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-16T15:11:07.215Z", "action": "purchase", "action_argument": "B09VKP2T7Z"}
{"timestamp": "2025-04-16T15:11:09.923Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-16T15:11:15.377Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-16T15:11:16.518Z", "action": "purchase", "action_argument": "B09VKP2T7Z"}
{"timestamp": "2025-04-20T23:35:54.798Z", "action": "input", "action_argument": "coffee"}
{"timestamp": "2025-04-20T23:37:47.230Z", "action": "input", "action_argument": "coffee"}
{"timestamp": "2025-04-20T23:37:47.258Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-27T01:24:31.708Z", "action": "input", "action_argument": "sephora"}
{"timestamp": "2025-04-27T01:24:37.336Z", "action": "input", "action_argument": "farmacy"}
{"timestamp": "2025-04-27T01:24:37.383Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-27T01:25:07.600Z", "action": "click", "action_argument": "product_option"}
{"timestamp": "2025-04-28T02:34:56.766Z", "action": "click_product", "action_argument": "B01AW1R2W0"}
{"timestamp": "2025-04-28T02:35:25.076Z", "action": "click_product", "action_argument": "B0CPQ7FHNY"}
{"timestamp": "2025-04-28T02:36:41.173Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:36:53.953Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:36:56.400Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:01.494Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:02.667Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:05.397Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:06.827Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:07.700Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:09.000Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-28T02:37:57.386Z", "action": "purchase", "action_argument": "B0849S7C5W"}
{"timestamp": "2025-04-28T02:38:03.196Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-28T02:38:15.105Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-28T02:38:23.133Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-28T02:38:27.727Z", "action": "purchase", "action_argument": "B0849S7C5W"}
{"timestamp": "2025-04-28T02:39:49.430Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-28T02:40:12.291Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-28T02:40:25.106Z", "action": "click_product", "action_argument": "B0849S7C5W"}
{"timestamp": "2025-04-28T02:41:03.816Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-28T02:41:08.463Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-28T02:43:24.149Z", "action": "click_product", "action_argument": "B0849S7C5W"}
{"timestamp": "2025-04-28T02:44:23.382Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-28T02:44:27.240Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-28T02:44:31.311Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-28T02:44:33.076Z", "action": "purchase", "action_argument": "B0849S7C5W"}
<|memory_end|>

<|action_start|>
{"timestamp": "2025-04-29T03:04:44.732Z", "action": "input", "action_argument": "move free"}
{"timestamp": "2025-04-29T03:10:18.429Z", "action": "click_product", "action_argument": "B001W2MBSE"}
{"timestamp": "2025-04-29T03:11:54.263Z", "action": "input", "action_argument": "move free"}
<|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": "move free"
}
  ],
  "product_details": [
    {
  "asin": "B001W2MBSE"
},
    {
  "title": "Move Free Advanced Glucosamine Chondroitin MSM Joint Support Supplement, Supports Mobility Comfort Strength Flexibility & Bone - 120 Tablets (40 servings)*"
},
    {
  "price": "$19.37"
},
    {
  "bullet_list": "DID YOU KNOW: Move Free Advanced , MSM combines heritage joint support ingredients with the clinically studied mineral complex Uniflex. Uniflex has been shown to help support joint comfort in as little as 14 days. WHAT IS IT: With Glucosamine, Chondroitin, Calcium Fructoborate & MSM, this product helps support the 5 signs of joint health joint mobility, comfort, strength, flexibility, and lubrication. PLUS it provides extra cartilage support. Flavor Type: Unflavored WHY MOVE FREE: Our scientists started in the fitness community, helping athletes who have experienced joint discomfort. Then it became obvious it wasn\u2019t just athletes who needed our help. Move Free has one goal in mind: Keep you moving EASIER TO SWALLOW TABLETS: Our exclusive state-of-the-art technology allows us to pack the same amount of our powerful ingredients into a smaller tablet, making it easier to take every day for the joint support you want. WHY GLUCOSAMINE: It is key for the formation of cartilage essential building block of joints. It helps contribute to healthy joint fluid that supports joint lubrication & smooth movement, while also supporting joint comfort, mobility and flexibility. WHY CHONDROITIN: Chondroitin is a building block of cartilage that supports joint strength by helping to resist compression in the joints. In the body, Chondroitin functions by attracting fluid to joints to support cushioning and lubrication. WHY MSM: Methylsulfonylmethane MSM is a souce of sulfur found in the body that is important in the formation of collagen in joints. Collagen is a vital part of your joints because it supports the structure of cartilage."
},
    {
  "bullet_list": "  HOW MUCH SHOULD I TAKE: Adults take three tablets once a day with a meal OR one tablet three times daily with meals. Move Free Advanced Glucosamine & Chondroitin, MSM provides 120 servings per box.  COMMONLY SEARCHED TOPICS: schiff moove move free movefree best joint cartilage knee immune bone health support supplements glucosamine chondroitin condroitin chondrotin hyaluronic acid HA msm joint lubrication comfort mobility strength flexibility  "
}
  ],
  "product_quantity": [
    {
  "quantity": "1"
}
  ],
  "product_options": [
    {
  "Item Package Quantity": "1"
}
  ],
  "promotion_items": [
    {"title": "Move Free Advanced Glucosamine Chondroitin MSM + Vitamin D3 Joint Support Supplement, Supports Mobility Comfort Strength Flexibility & Bone + Immune Health - 120 Tablets (60 servings)*", "asin": "B01ANSLIFY", "price": "$26.99", "quantity": ""},
    {"title": "Move Free Ultra Pro with Quadruple Action Joint Support - Type 2 Collagen MSM Calcium Fructoborate & Manganese - Supports Joint Cartiliage Bone Connective Tissue, 120 Tablets (30 servings)", "asin": "B08C96WHHS", "price": "$33.62", "quantity": ""},
    {"title": "Glucosamine Chondroitin MSM and Turmeric Supplement - Joint Support Supplement for Women & Men with Boswellia & Glucosamine Sulfate 1500 mg. Used for Cartilage & Joint Health & Flexibility 90 Capsules", "asin": "B01GVJK3XW", "price": "$28.97", "quantity": ""},
    {"title": "Move Free Advanced 5-Day Joint Support Supplement with TamaFlex (Turmeric & Tamarind), Glucosamine, & Vitamin D3 for Joint Health, Bone Strength, Cartilage, and Knee Range of Motion. 90 Count", "asin": "B0DWGV6FCQ", "price": "$17.99", "quantity": ""},
    {"title": "Nature's Base Glucosamine Chondroitin MSM Collagen - Joint Support Supplement for Mobility, Flexibility, & Comfort - with Turmeric, Boswellia - for Men & Women - 90 Capsules", "asin": "B0DGL7S21N", "price": "$17.59", "quantity": ""},
    {"title": "Osteo Bi-Flex Triple Strength(5), Glucosamine Chondroitin with Vitamin C Joint Health Supplement, Coated Tablets, 120 Count", "asin": "B00006FE3S", "price": "$17.95", "quantity": ""},
    {"title": "Nutramax Cosamin\u00ae DS Joint Health Supplement with Glucosamine & Chondroitin for Men\u2019s & Women's Joint Health, 180 Capsules", "asin": "B0889HVGNQ", "price": "$44.99", "quantity": ""}
  ]
}
<|observation_end|>

# Output Format
Please provide your response in JSON format within <answer></answer> tags using the following schema:
"<answer>
{
"timestamp": "2025-04-29T03:11:54.679Z", // the timestamp when this action occurs
"action": "string", // one of four action: input, click, click_product, purchase
"acion_argument": "string", // appropriate value based on action type: input_text, click_type (i.e., select one from review, product_option, other, nav_bar, quantity, page_related, suggested_term, cart_side_bar, cart_page_select, filter), or product_asin
}
</answer>"

<|im_end|>
<|im_start|>assistant
<think>
