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: Allegrace Women Sleeveless Mesh Patchwork Bodycon Yoga Sport Jumpsuits Rompers
Product feature: Sizes:S(US0-2),M(US4-6),L(US6-8),XL(US8-10),if you are not sure about your size,pls choose one size up, Polyester Blend Spandex With Good Elastic,Suit For Yoga or Body-Fit Sport, Back Open and Sleeveless,Good for Summer and Autumn, Sexy See-through Mesh Patchwork On Both Sides, Allegrace Owns Its Own Trademarks.The Serial Number:86500329. The Package Contains Allegrace Tag, Package Dimensions: 8.6 x 7.9 x 2.3 inches, Shipping Weight: 13.6 ounces, ASIN: B01GDU72MO, Item model number: AG175-M-01, Date first listed on Amazon: May 31, 2016, Average Customer Review: 2.0 out of 5 stars 2 customer reviews
Product brand: Allegrace
Target attributes: Pattern
Answer: attribute: pattern
value: None
source: None