Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: adidas Performance Tiro 15 Training Pant - Mens
Product description: Warm up without getting too hot in these soccer pants. Made with breathable climacool ventilation, they feature ankle zips and a tapered cut.
Product feature: 100% Polyester, Climacool Provides Heat And Moisture Management Through Ventilation, Functional Knitted Fabric. Ankle zips. Zip pockets., Bottom Leg Zips. Tapered fit. Drawcord on elastic waist, Shipping Information: View shipping rates and policies, ASIN: B07C44V7XN, Date first listed on Amazon: February 2, 2015, Average Customer Review: Be the first to review this item
Product price: $25.00 - $40.00
Target attributes: Length
Answer: attribute: length
value: ankle
source: product description
attribute: length
value: ankle
source: product feature