Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: CLARKS Riddle Avant Women's Boot
Product description: Crafted of extra-soft tan leather, this women's boot is accented with distinctive hardware and mini side zip. Bendables flexible construction plus an OrthoLite footbed cushion the foot in comfort. Choose this boot to add a rugged counterpoint to flirty dresses and skirts, or pull it on over skinny jeans.
Product feature: Leather, Shipping Information: View shipping rates and policies, ASIN: B07C2695XP, Date first listed on Amazon: January 29, 2015, Average Customer Review: 3.8 out of 5 stars 52 customer reviews
Product price: $89.99 - $99.99
Target attributes: Silhouette
Answer: attribute: silhouette
value: None
source: None