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: West Bend 4-Pack Small Popcorn Bowls (Discontinued by Manufacturer)
Product description: This 4 pack of bowls is made of speckled enamelware. They come in four different colors, red, yellow, blue and green Each bowl holds 1-quart of popped corn.
Product feature: 1-quart capacity each bowl, Speckled enamalware metal, Comes in four different colors, red, yellow, blue, and green
Product brand: West Bend
Target attributes: Season
Answer: attribute: season
value: None
source: None