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: Nygard Home Patricia Portugal 100-Percent Lambswool Throw
Product description: 100% Lambswool throw, Weight 270GRS/M2,Queen size:90x90",King size:108x90".Patricia - Portugal 100% Lambswool Throw.
Product feature: Size:51x67", Made in Portugal, Dryer cleaning
Product price: $171.48
Product brand: Nygard Home
Target attributes: Weight
Answer: attribute: weight
value: None
source: None