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: Green Bay Packers Football Lace Dog Collar
Product feature: Neck Sizing Chart: Toy fits 6 - 10 inches Small fits 10 - 14 inches Medium fits 14 - 20 inches Large fits 18 - 26 inches, Made from Genuine Leather, Officially Licensed, Neck Sizing Chart: Toy fits 8 - 12 inches Small fits 10 - 14 inches Medium fits 14 - 20 inches Large fits 18 - 26 inches, Wear your love; wear the game, Genuine Leather
Product price: $24.95
Product brand: GameWear
Target attributes: Collar Type
Answer: attribute: collar type
value: None
source: None