Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Open End Coin Envelopes (2 x 2) - 30 lb. Glassine (50 Qty.)
Product description: Use this to send flat, bulky materials or multiple small items like coins, seeds and tags.
Product feature: Open End Coin Envelopes (2 x 2), Color - 30lb. Glassine, Pack of 50
Product brand: LUXPaper
Target attributes: Type
Answer: attribute: type
value: coins
source: product description
attribute: type
value: coin
source: product title
attribute: type
value: coin
source: product feature