Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Kpop EXO Luhan Shirt Chan Yeol Unisex Red Plaid Long Sleeve Blouse
Product description: Kpop EXO Luhan Shirt Chan Yeol Unisex Red Plaid Long Sleeve Blouse Warm Notice: 1).It usually takes around 7-12 days for arrival, please ignore the time shown on Amazon 2).You can check our store "Dolpind "for a full range of clothes of similar styles 3). Because of the different measurement methods, Measurement difference from 1-3cm, Please check the size to confirm whether the clothes fits, 4).As different computers display colors differently, the color of the actual item may vary slightly from the above images. 5). Hope you can understand .And our quality is good. Please feel rest assured to buy. If you have any questions,please feel free to contact us,thanks!
Product feature: Material:Cotton, EXO Luhan Red Plaid Shirt, Luhan Return to 20Years Same Style Shirt, Size: Shoulder:52cm Chest:104cm Length:91cm Sleeve:47cm, Shipping Information: View shipping rates and policies, ASIN: B011YJE7CW, Date first listed on Amazon: July 18, 2015, Average Customer Review: 3.5 out of 5 stars 7 customer reviews
Product price: $22.88
Product brand: Dolpind
Target attributes: Pattern
Answer: attribute: pattern
value: plaid
source: product description
attribute: pattern
value: plaid
source: product title
attribute: pattern
value: plaid
source: product feature