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: Coxeer Mens Masquerade Mask Greek Roman Party Mask Mardi Gras Halloween Mask
Product feature: Hard Plastic, Made of Hard Plastic, Fits Most gentlemens fancy masquerade, Ancient Greek Style Perfect for Any Masquerade Ball or Venetian Party., secured with two ribbon ties to keep in good position and can easily adjust to face., Perfect for HalloweenChristmas carnivals,masquerade, mardi gras, party ball prom , costume cosplay party ,fashion shows , wedding,mask events , night club and so on., You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition., Read the full returns policy, Go to Your Orders to start the return, Print the return shipping label, Ship it!, Shipping Information: View shipping rates and policies, ASIN: B01GE4RMJ2, Date first listed on Amazon: May 31, 2016, Average Customer Review: 4.1 out of 5 stars 88 customer reviews
Product price: $16.98
Product brand: Coxeer
Target attributes: Variety
Answer: attribute: variety
value: venetian
source: product feature
attribute: variety
value: masquerade mask
source: product title