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: Red Dog Leash 6 Foot 1/2" Wide Beta Biothane
Product description: 6 foot long beta/biothane dog leash is 1/2" wide. This leash is ideal for small dogs. Biothane has leather look And feel with solid brass snap.
Product feature: 1/2 inch biothane, Brass snap
Product price: $14.99
Product brand: Big Black Horse
Target attributes: Pet
Answer: attribute: pet
value: dog leash
source: product description
attribute: pet
value: dogs
source: product description
attribute: pet
value: dog leash
source: product title