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: Mavi Women's Kitty Denim Skirt
Product feature: 76% Cotton/21% Polyester/3% Elastane, Imported, Machine Wash, Stretchy comfortable fabric, Deep clean wash, Package Dimensions: 10.9 x 10 x 1.9 inches, Shipping Weight: 11.2 ounces, ASIN: B00XBG5WUI, Item model number: 1344511790-401, Date first listed on Amazon: September 7, 2015, Average Customer Review: 5.0 out of 5 stars 1 customer review
Target attributes: Length
Answer: attribute: length
value: None
source: None