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: Miusol Women's Retro Floral Lace Halter Ruched Wedding Maxi Dress
Product feature: 100% Polyester, Imported, SIZE RECOMMEND: US 4/6(Small), US 8/10(Medium), US 12/14(Large), US 16/18(X-Large), US 20(XX-Large), Scoop Neck,2/3 Sleeve, Elegant Lace Pattern,Halter Dress, Ruched On The Waist,Sexy See Though Design, Please Put Into A Laundry Bag For Wash It With Low temperature and iron carefully in low temperature too., Suit for Wedding Party,Evening Prom and Club, Shipping Information: View shipping rates and policies, ASIN: B01E4WUADQ, Item model number: QF1538, Date first listed on Amazon: April 11, 2016, Average Customer Review: 4.0 out of 5 stars 198 customer reviews
Product price: $52.99
Target attributes: Shoulder Style
Answer: attribute: shoulder style
value: None
source: None