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: G. Loomis Corpo Short Sleeve Tee - Black - Medium
Product description: The G. Loomis Corpo Short Sleeve Tee features screened logos and custom G. Loomis trims, and tagless neck construction. This is a 100% preshrunk cotton t-shirt. Colors include: Black and Green.
Product feature: 100% Cotton, Screened Logos, Custom G. Loomis Trims, Tagless Neck Construction, 100% Preshrunk Cotton, ASIN: B00E6DSIXI, Item model number: GCORPSSTMBK, Date first listed on Amazon: July 26, 2013, Average Customer Review: 5.0 out of 5 stars 1 customer review
Product brand: G. Loomis
Target attributes: Sleeve Style
Answer: attribute: sleeve style
value: short sleeve
source: product title
attribute: sleeve style
value: short sleeve
source: product description