Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Ibagstyle® Women's Irregular Bowknot Tail Party Long Skirt
Product description: Ibagstyle is a registered brand in US, Only sold by Ibagstyle srore.
Product feature: Imported, Satin Fabric, Elastic Waistline, Front Shorter , Back Longer, Bridesmaid Skirt, Size M (62-72cm)=US(XS-M),Size L(72-85cm)=US(M-XL),Front 63cm ,Back 92cm, Package Dimensions: 11.3 x 10.2 x 2.2 inches, Shipping Weight: 11.2 ounces, ASIN: B00UY95T0I, Item model number: IB0012, Date first listed on Amazon: March 20, 2015, Average Customer Review: 3.2 out of 5 stars 17 customer reviews
Product brand: Ibagstyle
Target attributes: Specialty Style
Answer: attribute: specialty style
value: None
source: None