Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Indigo Rd. Women's Leana Engineer Boot
Product description: Look your best while wearing the Indigo Rd. Leana boot. The sleek faux-leather upper delivers eye-catching style, while the medial-zipper entry and stretch fabric back panel provides an easy on/off.
Product feature: 100% Synthetic, Imported, Rubber sole, Shaft measures approximately 19" from arch, Heel measures approximately 3", Straps and buckles, Block heel, Over the knee, Shipping Weight: 3.5 pounds ( View shipping rates and policies ), ASIN: B00XVRNT2U, Item model number: Leana, Date first listed on Amazon: September 18, 2015, 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: 3.9 out of 5 stars 3 customer reviews
Product price: $49.95 - $84.94
Product brand: Indigo Rd.
Target attributes: Type
Answer: attribute: type
value: boot
source: product description
attribute: type
value: boot
source: product title
attribute: type
value: over the knee
source: product feature