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: Salewa Women's Mountain Trainer Mid Leather Alpine Trekking Boot | Alpine Trekking, Hiking, Via Ferrata | Nubuck Leather Upper, Full Grain Leather Lining, Vibram Sole
Product description: The Mountain Trainer Mid Leather is a mid-cut alpine approach boot with a classic hard-wearing nubuck leather upper and full-grain leather lining. Designed to offer comfort and ankle protection during your hiking and trekking adventures on technical terrain. This boot is at home on rocky paths or via ferratas thanks to the grip provided by its Vibram Lynx C sole. The Mountain Trainer Mid Leather integrates SALEWAs patented technologies to offer the Alpine Fit 100% blister free guarantee: Climbing Lacing right down to the toe for a more precise fit; 3F System for firm ankle and heel support; Anatomical Cuff to increase the ankles rear range of motion and comfort during descents.
Product feature: 1.8MM Nubuck/360 Full Rubber Rand/Highly Wear Resistant Fabric, Imported, Vibram sole, Shaft measures approximately ankle-high from arch, NUBUCK UPPER & FULL GRAIN LEATHER LINER: Classic hard wearing leather construction., VIBRAM MATON SOLE: This boot is at home on rocky paths or via ferratas thanks to its Vibram Maton sole., 360 FULL RUBBER RAND: Durable 360 full rubber rand, and mid-stiff nylon midsole., 3F SYSTEM: The trademark SALEWA 3F System connects the instep area of the shoe with the sole and heel; ensuring flexibility, support and the correct fit where it's needed., IDEAL USES: Mountaineering, Alpine Climbing, Alpine Trekking. WEIGHT: 21.5oz./610g., Shipping Information: View shipping rates and policies, ASIN: B0160XO8VW, Item model number: Mountain Trainer Mid L-U, Date first listed on Amazon: April 28, 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: 4.2 out of 5 stars 2 customer reviews
Product price: $159.95 - $268.95
Target attributes: Type
Answer: attribute: type
value: boot
source: product description
attribute: type
value: boot
source: product title
attribute: type
value: boot
source: product feature