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: CafePress Not Mine Maternity Dark T-Shirt Maternity Tee Black
Product description: CafePress brings your passions to life with the perfect item for every occasion. With thousands of designs to choose from, you are certain to find the unique item you've been seeking. This maternity fit short-sleeve t-shirt features a comfortable v-neck and quality construction, making it the perfect graphic tee gift for mom-to-be. The super soft 100% ring spun cotton jersey knit fabric looks as good as it feels, has extra stretch, is fitted with elastic side ruching, and extra length for flattering maternity curves. Our cute, funny, and unique designs are printed professionally, and make great novelty gifts for baby showers or Mother's Day. And with CafePress, your satisfaction is always our promise...buy with confidence, as we offer easy returns and exchanges and a 100% money back guarantee.
Product feature: These quality short-sleeve v-neck maternity t-shirts are 100% ring spun cotton jersey knit with extra stretch for comfort. Length is slightly longer to hug hips, and side ruching elastic makes flattering maternity curves. S, M, L, XL, 2XL available., Our graphic tee designs are professionally printed, so your unique design will look great and make someone smile with the funny, cute, vintage, or expressive artwork., Treat yourself, or make this pregnancy tee the perfect gift for mom-to-be on Mother's Day, at her baby shower, or for no reason at all!, Machine wash cold inside out with like colors and tumble dry low for easy and convenient care. IMPORTED., We offer 100% money back guarantee, so you can buy with confidence. Your satisfaction is our promise, and returns/exchanges are made easy., Shipping Information: View shipping rates and policies, ASIN: B00MERUMOG, Date first listed on Amazon: August 10, 2012, Average Customer Review: 1.0 out of 5 stars 1 customer review
Target attributes: Sleeve Style
Answer: attribute: sleeve style
value: short-sleeve
source: product description
attribute: sleeve style
value: short-sleeve
source: product feature