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

Input:
Product title: Nine West Women's Leyna Loafer
Product feature: 100% Suede, Imported, Synthetic sole, Heel measures approximately 0.5", Package Dimensions: 19.7 x 13.8 x 4.7 inches, Shipping Weight: 3.53 pounds, ASIN: B000ZWXJ8I, Item model number: Leyna, Date first listed on Amazon: July 19, 2013, Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 4.2 out of 5 stars 9 customer reviews
Target attributes: Silhouette
Answer: attribute: silhouette
value: loafer
source: product title