Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: G2 Chic Women's Sleeveless Draped Button Down Chiffon Shirt Dress
Product description: Here is every lady's MUST-HAVE shirt dress! Stylish and Comfortable! Pair it with a belt and a jacket or blazer, and you'll be the "it" girl at work, party or just walking down the street! A draped side design will chic up your entire look! A casual dress featuring a classic button-down shirt style with a twist! Draped side design. An intentionally loose fit. High low hemline. Sleeveless. Standard collar with V neckline. Full front button placket with gold buttons. A soft, comfy and flowy chiffon fabric. Finished hem and trims. Loose fit. Mid-length. Lightweight. It's great for both day and evening occasions including working, clubbing, lounging, and vacations!
Product feature: 100% polyester, 100% POLYESTER, A classic button-down shirt style with a twist! Draped side design. An intentionally loose fit. High low hemline. Sleeveless. Standard collar with V neckline., Full front button placket with gold buttons. A soft, comfy and flowy chiffon fabric. Finished hem and trims. Loose fit. Mid-length. Lightweight., Stylish and Comfortable! Pair it with a belt and a jacket or blazer, and you'll be the "it" girl at work, party or just walking down the street! It's great for both day and evening occasions!, Ships from the United States. Eligible for FREE Super Saver Shipping., Package Dimensions: 12.9 x 6.1 x 2.2 inches, Shipping Weight: 6.4 ounces, ASIN: B00F8NKTS2, Date first listed on Amazon: November 30, 2011, Average Customer Review: 3.0 out of 5 stars 2 customer reviews
Product brand: G2 Chic
Target attributes: Sleeve Style
Answer: attribute: sleeve style
value: sleeveless
source: product feature
attribute: sleeve style
value: sleeveless
source: product title
attribute: sleeve style
value: sleeveless
source: product description