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: Teva - Flatform Universal Crackle - Women (6)
Product description: Teva - Flatform Universal Crackle
Product feature: Flatform Universal Crackle, Package Dimensions: 12.2 x 8.3 x 4.6 inches, Shipping Weight: 1.4 pounds, ASIN: B01D3H1G9A, Date first listed on Amazon: April 17, 2016, Average Customer Review: 5.0 out of 5 stars 1 customer review
Target attributes: Pattern
Answer: attribute: pattern
value: None
source: None