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: White Foam Balls for Crafts and School Projects (1" Inch/25mm - 100 Balls)
Product feature: Perfect for Arts and Crafts Projects, Size: 1" Inch/25mm Dia., Color: White, Quantity: 100PCS
Product price: $13.99
Product brand: Neutral
Target attributes: Material
Answer: attribute: material
value: None
source: None