Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: French Connection Women's Elvia Dress Pump
Product description: 2 piece pump
Product feature: 100% Kid Suede, Imported, Leather sole, 2 piece, Package Dimensions: 12 x 8 x 4 inches, Shipping Weight: 2 pounds ( View shipping rates and policies ), ASIN: B00M93713U, Item model number: Elvia, Date first listed on Amazon: September 6, 2014, 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: 3.5 out of 5 stars 23 customer reviews
Target attributes: Silhouette
Answer: attribute: silhouette
value: pump
source: product title
attribute: silhouette
value: pump
source: product description