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: Aldo Women's Gerama Riding Boot
Product description: Ladies low heel over the knee, with half a side zip and laces detail in the back
Product feature: 100% Micro Suede, Imported, Synthetic sole, Shaft measures approximately 23.5" from arch, Heel measures approximately 1.5", Boot opening measures approximately 16.75" around, Over the knee boot, Package Dimensions: 12.3 x 11 x 4.3 inches, Shipping Weight: 2.7 pounds, ASIN: B01FNF5D0I, Item model number: 48387726-001, Date first listed on Amazon: October 5, 2016, 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 13 customer reviews
Product brand: ALDO
Target attributes: Silhouette
Answer: attribute: silhouette
value: None
source: None