Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Merrick Jerky Chip Treats, Real Salmon Plus Potato Recipe
Product description: Merrick Jerky Chip Treats are oven-baked, all-natural dog cookie treats filled with protein-packed jerky chips as the first ingredient, made from real deboned meat, fish or poultry. Merrick Jerky Chip Treats are grain-free and gluten-free with no corn, soy or wheat.
Product feature: #1 Ingredient Is Real Deboned Salmon Jerky Chips, Grain-Free And Gluten-Free With No Corn, Soy Or Wheat, Poultry-Free Recipe For Dogs With Sensitivities To Poultry Ingredients, Oven-Baked Cookies For The Best Dog Ever, Cooked In The Usa.
Product brand: Merrick
Target attributes: Type
Answer: attribute: type
value: jerky
source: product title
attribute: type
value: cookie
source: product description
attribute: type
value: cookies
source: product feature
attribute: type
value: baked
source: product feature
attribute: type
value: baked
source: product description
attribute: type
value: jerky
source: product feature
attribute: type
value: jerky
source: product description