<|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|>
<|memory_end|>

<|action_start|>
{"timestamp": "2025-04-22T21:11:59.196Z", "action": "input", "action_argument": "mask of n9s"}
{"timestamp": "2025-04-22T21:11:59.425Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-04-22T21:12:47.627Z", "action": "input", "action_argument": "mask of n95s"}
<|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.
"promotion_items": [{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (10-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B08YS4958R", "price": "$14.99", "quantity": ""},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "price": "$19.99", "quantity": ""},
{"title": "AccuMed N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask, Tri-Fold Cup/Fish Style, (10-Pack, Approval Number TC-84A-9362 / Model F95W) White", "asin": "B094DYKP3S", "price": "$14.99", "quantity": ""},
{"title": "KN95 Face Masks 50 Pack, Breathable Comfortable Disposable Face Mask For Adults And Teens, Black", "asin": "B0D3J442J3", "price": "$16.99", "quantity": ""},
{"title": "Miuphro KN95 Disposable Face Mask 25 Pack 5-Ply Breathable Safety Masks Against PM2.5, Disposable Respirator Protection Mask for Men and Women Black", "asin": "B08NPR7WF2", "price": "$14.74", "quantity": ""},
{"title": "Miuphro KN95 Disposable Face Mask 25 Pack 5-Ply Breathable Safety Masks Against PM2.5, Disposable Respirator Protection Mask for Men and Women Black", "asin": "B08NPR7WF2", "price": "$14.74", "quantity": ""},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (10-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B08YS4958R", "price": "$14.99", "quantity": ""},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "price": "$19.99", "quantity": ""},
{"title": "WWDOLL KN95 Face Mask 25 Pack, 5-Layers Breathable KN95 Masks, White", "asin": "B08JQMPGWN", "price": "$16.74", "quantity": ""},
{"title": "Miuphro KN95 Face Mask 50 Pack, Disposable Respirator Masks, 5 Layer Design Safety Mask for Protection, Ideal for Men and Women (White)", "asin": "B08NPKT21P", "price": "$19.74", "quantity": ""}],
"ads": [{"title": "Lyka Distribution KN95 Face Masks - 50 Pack - 5 Layer Protection Breathable Face Mask - Filtration>95% with Comfortable Elastic Ear Loop | Non-Woven Polypropylene Fabric", "asin": "B08GL3YLPQ"}],
"search_results": [{"title": "N95 Mask NIOSH Approved 25-Pack, Particulate Respirator N95 Face Masks Universal Fit - Individually Wrapped", "asin": "B09FZ7HVV9", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "KN95 Face Mask 30pcs Disposable Face Masks Individual Packed Safety 5 Layers Breathable Cup Dust Masks Filtration>95%", "asin": "B08NX789VB", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "LEMENT 50pcs KN95 Face Mask Black 5 Layer Cup Dust Safety Masks Filter Efficiency\u226595% Breathable Elastic Ear Loops Black Masks", "asin": "B08Y8NVW6Y", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "AccuMed BNX N95 Mask Black NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95B) Black", "asin": "B097HYFCN5", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (10-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B08YS4958R", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "N95 Mask NIOSH Approved 25-Pack, Particulate Respirator N95 Face Masks Universal Fit - Individually Wrapped", "asin": "B09FZ7HVV9", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "3M Aura Particulate N95 Respirator 9205+, Flat Fold Lightweight Design, Non-Valved, 20 Count (Pack of 1)", "asin": "B095FJ36H2", "delivery": " Overnight FREE delivery Overnight 4 AM - 8 AM"},
{"title": "AccuMed N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask, Tri-Fold Cup/Fish Style, (10-Pack, Approval Number TC-84A-9362 / Model F95W) White", "asin": "B094DYKP3S", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "N95 Mask Particulate Respirators, Pack of 20 N95 Face Masks, Individually Wrapped,Black", "asin": "B0DX1DLK5R", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "3M Particulate Respirator Lightweight with Cushioning Nose Foam", "asin": "B008MCUZZS", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "Funight KN95 Face Masks 50 Pack for Adults, Breathable and Comfortable KN95 Mask with Elastic Ear Loop, Filter Efficiency\u226595%, Black", "asin": "B0CY4SYXZX", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "Shawmut Protex\u2122 N95 Mask, Made in the USA NIOSH Approved, Particulate Respirators, Protective Face Mask", "asin": "B09GWFNFS7", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M N95 Respirator 8511, 10 Pack, NIOSH-APPROVED N95, Features 3M COOL FLOW Exhalation Valve, Relief From Dusts & Certain Particles During Sanding, Pollen, Mold Spores, Dust Particles (8511DB1-A-PS)", "asin": "B007ZUDVC2", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M Aura Particulate Respirator 9205+, N95, Pack of 20 Disposable Respirators, Individually Wrapped, 3 Panel Flat Fold Design Allows for Facial Movements, Comfortable, NIOSH Approved, Smoke", "asin": "B09FM2P1KF", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "KN95 Face Mask Black, 50 Pack - 5-Layer Protective Masks, GB2626-2019 Certified, Comfortable Ear Loops, 98% High Filtration, Adjustable Nose Bridge, Non-Medical Respirators for Everyday Safety", "asin": "B0CHMPDYMK", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M Aura Particulate Respirator 9205+ N95, Lightweight, 3 Panel Designed Helps Provide Comfortable and Convenient Respiratory Protection, 3-Pack", "asin": "B095DZQ5MX", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Only 16 left in stock - order soon."},
{"title": "NIOSH Approved N95 Mask Particulate Respirators, Pack of 20 N95 Face Masks, Individually Wrapped, Universal Fit", "asin": "B09BN4YWFC", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M N95 Respirator 8511, Cool Flow Valve, 10 Pack, NIOSH-APPROVED, Advanced Filter Media For Easy Breathing, Comfortable For Long Periods Of Wear, Helps Filter Pollen, Mold Spores & Dust (8511PB1-A-PS)", "asin": "B0002YKBV2", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "GIKO N95 Respirator Masks - 15Pcs NIOSH Certified Safety Masks Cup Particulate Respirator Mask with Breathing Valve for Adult, Men, Women, White", "asin": "B08YYPKFCG", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "Funight KN95 Face Masks 50 Pack 5-Ply Breathable Filter Disposable Face Masks Black", "asin": "B09GLY1S79", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"}]
<|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": "2025-04-22T21:17:57.404Z", // 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>

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 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|>
<|memory_end|>

<|action_start|>
{"timestamp": "2025-04-22T21:11:59.196Z", "action": "input", "action_argument": "mask of n9s"}
{"timestamp": "2025-04-22T21:11:59.425Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-04-22T21:12:47.627Z", "action": "input", "action_argument": "mask of n95s"}
<|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.
"promotion_items": [{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (10-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B08YS4958R", "price": "$14.99", "quantity": ""},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "price": "$19.99", "quantity": ""},
{"title": "AccuMed N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask, Tri-Fold Cup/Fish Style, (10-Pack, Approval Number TC-84A-9362 / Model F95W) White", "asin": "B094DYKP3S", "price": "$14.99", "quantity": ""},
{"title": "KN95 Face Masks 50 Pack, Breathable Comfortable Disposable Face Mask For Adults And Teens, Black", "asin": "B0D3J442J3", "price": "$16.99", "quantity": ""},
{"title": "Miuphro KN95 Disposable Face Mask 25 Pack 5-Ply Breathable Safety Masks Against PM2.5, Disposable Respirator Protection Mask for Men and Women Black", "asin": "B08NPR7WF2", "price": "$14.74", "quantity": ""},
{"title": "Miuphro KN95 Disposable Face Mask 25 Pack 5-Ply Breathable Safety Masks Against PM2.5, Disposable Respirator Protection Mask for Men and Women Black", "asin": "B08NPR7WF2", "price": "$14.74", "quantity": ""},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (10-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B08YS4958R", "price": "$14.99", "quantity": ""},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "price": "$19.99", "quantity": ""},
{"title": "WWDOLL KN95 Face Mask 25 Pack, 5-Layers Breathable KN95 Masks, White", "asin": "B08JQMPGWN", "price": "$16.74", "quantity": ""},
{"title": "Miuphro KN95 Face Mask 50 Pack, Disposable Respirator Masks, 5 Layer Design Safety Mask for Protection, Ideal for Men and Women (White)", "asin": "B08NPKT21P", "price": "$19.74", "quantity": ""}],
"ads": [{"title": "Lyka Distribution KN95 Face Masks - 50 Pack - 5 Layer Protection Breathable Face Mask - Filtration>95% with Comfortable Elastic Ear Loop | Non-Woven Polypropylene Fabric", "asin": "B08GL3YLPQ"}],
"search_results": [{"title": "N95 Mask NIOSH Approved 25-Pack, Particulate Respirator N95 Face Masks Universal Fit - Individually Wrapped", "asin": "B09FZ7HVV9", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "KN95 Face Mask 30pcs Disposable Face Masks Individual Packed Safety 5 Layers Breathable Cup Dust Masks Filtration>95%", "asin": "B08NX789VB", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "LEMENT 50pcs KN95 Face Mask Black 5 Layer Cup Dust Safety Masks Filter Efficiency\u226595% Breathable Elastic Ear Loops Black Masks", "asin": "B08Y8NVW6Y", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "AccuMed BNX N95 Mask Black NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95B) Black", "asin": "B097HYFCN5", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (10-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B08YS4958R", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "N95 Mask NIOSH Approved 25-Pack, Particulate Respirator N95 Face Masks Universal Fit - Individually Wrapped", "asin": "B09FZ7HVV9", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "3M Aura Particulate N95 Respirator 9205+, Flat Fold Lightweight Design, Non-Valved, 20 Count (Pack of 1)", "asin": "B095FJ36H2", "delivery": " Overnight FREE delivery Overnight 4 AM - 8 AM"},
{"title": "AccuMed N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask, Tri-Fold Cup/Fish Style, (10-Pack, Approval Number TC-84A-9362 / Model F95W) White", "asin": "B094DYKP3S", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "N95 Mask Particulate Respirators, Pack of 20 N95 Face Masks, Individually Wrapped,Black", "asin": "B0DX1DLK5R", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "3M Particulate Respirator Lightweight with Cushioning Nose Foam", "asin": "B008MCUZZS", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "Funight KN95 Face Masks 50 Pack for Adults, Breathable and Comfortable KN95 Mask with Elastic Ear Loop, Filter Efficiency\u226595%, Black", "asin": "B0CY4SYXZX", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "Shawmut Protex\u2122 N95 Mask, Made in the USA NIOSH Approved, Particulate Respirators, Protective Face Mask", "asin": "B09GWFNFS7", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M N95 Respirator 8511, 10 Pack, NIOSH-APPROVED N95, Features 3M COOL FLOW Exhalation Valve, Relief From Dusts & Certain Particles During Sanding, Pollen, Mold Spores, Dust Particles (8511DB1-A-PS)", "asin": "B007ZUDVC2", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M Aura Particulate Respirator 9205+, N95, Pack of 20 Disposable Respirators, Individually Wrapped, 3 Panel Flat Fold Design Allows for Facial Movements, Comfortable, NIOSH Approved, Smoke", "asin": "B09FM2P1KF", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "KN95 Face Mask Black, 50 Pack - 5-Layer Protective Masks, GB2626-2019 Certified, Comfortable Ear Loops, 98% High Filtration, Adjustable Nose Bridge, Non-Medical Respirators for Everyday Safety", "asin": "B0CHMPDYMK", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M Aura Particulate Respirator 9205+ N95, Lightweight, 3 Panel Designed Helps Provide Comfortable and Convenient Respiratory Protection, 3-Pack", "asin": "B095DZQ5MX", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Only 16 left in stock - order soon."},
{"title": "NIOSH Approved N95 Mask Particulate Respirators, Pack of 20 N95 Face Masks, Individually Wrapped, Universal Fit", "asin": "B09BN4YWFC", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M N95 Respirator 8511, Cool Flow Valve, 10 Pack, NIOSH-APPROVED, Advanced Filter Media For Easy Breathing, Comfortable For Long Periods Of Wear, Helps Filter Pollen, Mold Spores & Dust (8511PB1-A-PS)", "asin": "B0002YKBV2", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "GIKO N95 Respirator Masks - 15Pcs NIOSH Certified Safety Masks Cup Particulate Respirator Mask with Breathing Valve for Adult, Men, Women, White", "asin": "B08YYPKFCG", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "Funight KN95 Face Masks 50 Pack 5-Ply Breathable Filter Disposable Face Masks Black", "asin": "B09GLY1S79", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"}]
<|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": "2025-04-22T21:17:57.404Z", // 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>

<|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|>
<|memory_end|>

<|action_start|>
{"timestamp": "2025-04-22T21:11:59.196Z", "action": "input", "action_argument": "mask of n9s"}
{"timestamp": "2025-04-22T21:11:59.425Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-04-22T21:12:47.627Z", "action": "input", "action_argument": "mask of n95s"}
<|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.
"promotion_items": [{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (10-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B08YS4958R", "price": "$14.99", "quantity": ""},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "price": "$19.99", "quantity": ""},
{"title": "AccuMed N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask, Tri-Fold Cup/Fish Style, (10-Pack, Approval Number TC-84A-9362 / Model F95W) White", "asin": "B094DYKP3S", "price": "$14.99", "quantity": ""},
{"title": "KN95 Face Masks 50 Pack, Breathable Comfortable Disposable Face Mask For Adults And Teens, Black", "asin": "B0D3J442J3", "price": "$16.99", "quantity": ""},
{"title": "Miuphro KN95 Disposable Face Mask 25 Pack 5-Ply Breathable Safety Masks Against PM2.5, Disposable Respirator Protection Mask for Men and Women Black", "asin": "B08NPR7WF2", "price": "$14.74", "quantity": ""},
{"title": "Miuphro KN95 Disposable Face Mask 25 Pack 5-Ply Breathable Safety Masks Against PM2.5, Disposable Respirator Protection Mask for Men and Women Black", "asin": "B08NPR7WF2", "price": "$14.74", "quantity": ""},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (10-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B08YS4958R", "price": "$14.99", "quantity": ""},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "price": "$19.99", "quantity": ""},
{"title": "WWDOLL KN95 Face Mask 25 Pack, 5-Layers Breathable KN95 Masks, White", "asin": "B08JQMPGWN", "price": "$16.74", "quantity": ""},
{"title": "Miuphro KN95 Face Mask 50 Pack, Disposable Respirator Masks, 5 Layer Design Safety Mask for Protection, Ideal for Men and Women (White)", "asin": "B08NPKT21P", "price": "$19.74", "quantity": ""}],
"ads": [{"title": "Lyka Distribution KN95 Face Masks - 50 Pack - 5 Layer Protection Breathable Face Mask - Filtration>95% with Comfortable Elastic Ear Loop | Non-Woven Polypropylene Fabric", "asin": "B08GL3YLPQ"}],
"search_results": [{"title": "N95 Mask NIOSH Approved 25-Pack, Particulate Respirator N95 Face Masks Universal Fit - Individually Wrapped", "asin": "B09FZ7HVV9", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "KN95 Face Mask 30pcs Disposable Face Masks Individual Packed Safety 5 Layers Breathable Cup Dust Masks Filtration>95%", "asin": "B08NX789VB", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "LEMENT 50pcs KN95 Face Mask Black 5 Layer Cup Dust Safety Masks Filter Efficiency\u226595% Breathable Elastic Ear Loops Black Masks", "asin": "B08Y8NVW6Y", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "AccuMed BNX N95 Mask Black NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95B) Black", "asin": "B097HYFCN5", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (10-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B08YS4958R", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "N95 Mask NIOSH Approved 25-Pack, Particulate Respirator N95 Face Masks Universal Fit - Individually Wrapped", "asin": "B09FZ7HVV9", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "3M Aura Particulate N95 Respirator 9205+, Flat Fold Lightweight Design, Non-Valved, 20 Count (Pack of 1)", "asin": "B095FJ36H2", "delivery": " Overnight FREE delivery Overnight 4 AM - 8 AM"},
{"title": "AccuMed N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask, Tri-Fold Cup/Fish Style, (10-Pack, Approval Number TC-84A-9362 / Model F95W) White", "asin": "B094DYKP3S", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "N95 Mask Particulate Respirators, Pack of 20 N95 Face Masks, Individually Wrapped,Black", "asin": "B0DX1DLK5R", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "3M Particulate Respirator Lightweight with Cushioning Nose Foam", "asin": "B008MCUZZS", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "Funight KN95 Face Masks 50 Pack for Adults, Breathable and Comfortable KN95 Mask with Elastic Ear Loop, Filter Efficiency\u226595%, Black", "asin": "B0CY4SYXZX", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "Shawmut Protex\u2122 N95 Mask, Made in the USA NIOSH Approved, Particulate Respirators, Protective Face Mask", "asin": "B09GWFNFS7", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M N95 Respirator 8511, 10 Pack, NIOSH-APPROVED N95, Features 3M COOL FLOW Exhalation Valve, Relief From Dusts & Certain Particles During Sanding, Pollen, Mold Spores, Dust Particles (8511DB1-A-PS)", "asin": "B007ZUDVC2", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M Aura Particulate Respirator 9205+, N95, Pack of 20 Disposable Respirators, Individually Wrapped, 3 Panel Flat Fold Design Allows for Facial Movements, Comfortable, NIOSH Approved, Smoke", "asin": "B09FM2P1KF", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "KN95 Face Mask Black, 50 Pack - 5-Layer Protective Masks, GB2626-2019 Certified, Comfortable Ear Loops, 98% High Filtration, Adjustable Nose Bridge, Non-Medical Respirators for Everyday Safety", "asin": "B0CHMPDYMK", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M Aura Particulate Respirator 9205+ N95, Lightweight, 3 Panel Designed Helps Provide Comfortable and Convenient Respiratory Protection, 3-Pack", "asin": "B095DZQ5MX", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Only 16 left in stock - order soon."},
{"title": "NIOSH Approved N95 Mask Particulate Respirators, Pack of 20 N95 Face Masks, Individually Wrapped, Universal Fit", "asin": "B09BN4YWFC", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M N95 Respirator 8511, Cool Flow Valve, 10 Pack, NIOSH-APPROVED, Advanced Filter Media For Easy Breathing, Comfortable For Long Periods Of Wear, Helps Filter Pollen, Mold Spores & Dust (8511PB1-A-PS)", "asin": "B0002YKBV2", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "GIKO N95 Respirator Masks - 15Pcs NIOSH Certified Safety Masks Cup Particulate Respirator Mask with Breathing Valve for Adult, Men, Women, White", "asin": "B08YYPKFCG", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "Funight KN95 Face Masks 50 Pack 5-Ply Breathable Filter Disposable Face Masks Black", "asin": "B09GLY1S79", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"}]
<|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": "2025-04-22T21:17:57.404Z", // 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>
