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: MCR Safety 901L Fasguard Premium Grain Deerskin Multi-Task Gloves with Black Spandex Back and Adjustable Wrist Closure, Yellow/Black, Large, 1-Pair
Product description: Memphis Fasguard 901L Deerskin Mechanic Work Gloves, Size Large (1 Pair) Memphis Gloves Automotive Performance Gloves Fasguard Features: Excellent mechanics hand protection Nylon Spandex back for a snug fit DeerSkin Leather Velcro wrist closure May be used as driving gloves Industry Applications: Automotive assembly and general mechanics, maintenance and other applications requiring multi-purpose hand protection, Fasguard multi-task glove styles are constructed from an assortment of premium materials. Most styles feature clarino or other synthetic leathers. Additionally, premium grain deerskin and goatskin styles compliment this series. Clarino and synthetic leathers improve hand protection by providing greater functions and feel by being more soft and flexible than traditional materials. These synthetic materials are better than chrome tanned leather. Adjustable wrist closures. Glove palm is made of deer skin leather and glove back is made of spandex material. Available in yellow/black color and large size.
Product feature: Fasguard premium grain deerskin spandex back men's multi-task gloves, Glove palm is made of deer skin leather and glove back is made of spandex material, Adjustable wrist closures, Premium grain deerskin and goatskin styles compliment this series, Available in yellow/black color and large size
Product price: $1.96
Product brand: MCR Safety
Target attributes: Size
Answer: attribute: size
value: large
source: product description
attribute: size
value: large
source: product title
attribute: size
value: large
source: product feature