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: New Women Retro High Waist Plain Skater Flared Pleated Stretch Short Mini Skirt
Product description: Size S:Waist 68cm,Length 42cm Size M:Waist 72cm,Length 43cm Size L:Waist 76cm,Length 44cm Size XL:Waist 80cm,Length 45cm Size XL:Waist 84cm,Length 46cm
Product feature: Brand new and high quality, Material: Cotton Blend + Polyester, Style: A-Line, Color:? White, Gray, Black, What You Get: 1 x Fashion Skirt, ASIN: B00U78WMBA, Date first listed on Amazon: March 3, 2015, Average Customer Review: 5.0 out of 5 stars 1 customer review
Product brand: ACEFAST INC
Target attributes: Length
Answer: attribute: length
value: short
source: product title
attribute: length
value: mini
source: product title
attribute: length
value: skater
source: product title