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: Showblanc (SBDK15) Draped Wrap Front Cowl Neck Long Sleeve Stylish Slim T-shirts
Product description: International clothing brand Showblanc satisfies our customers with attractive design and reasonable price. Showblanc specializes in clothes and accessories, and also produces shirts, jackets, blazers, tshirts, coats, cardigans, sweaters, jeans, chinos, pants, vests, waistcoats, suits and accessories for men and women. Size Information SBDK15 US XS(Tag size M)... Shoulder: 17.3 in / Chest: 37.8 in / Sleeve: 21.1 in / Total Length: 27.2 in US S(Tag size L)... Shoulder: 18.1 in / Chest: 39.4 in / Sleeve: 21.9 in / Total Length: 28 in US M(Tag size XL)... Shoulder: 18.9 in / Chest: 40.9 in / Sleeve: 22.6 in / Total Length: 28.7 in US L(Tag size 2XL)... Shoulder: 19.7 in / Chest: 42.5 in / Sleeve: 23.4 in / Total Length: 29.5 in US XL(Tag size 3XL)... Shoulder: 20.5 in / Chest: 44.1 in / Sleeve: 24.2 in / Total Length: 30.3 in
Product feature: 100% Cotton/ Machine wash, Basic closure, Slim fit, Long sleeve, Ruffle, Style : Casual Attire, Dressy and Business Casual, Semi Formal, Model : 6 feet and 163lbs - Size : Large(Chest 40), Fit : A streamlined slim silhouette for a modern look. It can be a bit slimmer than expected. Please check US size in drop-down list our size and refer to size charts below in description to figure out your size., Wash Separately From Colors To Be Clear Colors In Itself, Shipping Weight: 14.4 ounces, ASIN: B017W23E5Q, Date first listed on Amazon: November 9, 2015, Average Customer Review: 4.5 out of 5 stars 2 customer reviews
Product brand: Showblanc
Target attributes: Sleeve Style
Answer: attribute: sleeve style
value: long sleeve
source: product title
attribute: sleeve style
value: long sleeve
source: product feature