Instruction: Evaluate each product title in the given list, assess its relevance to the given query, and then arrange the products in descending order of relevance, with the most relevant product at the top of the ranked list.

Input:
Query: I am looking to purchase a black leather biker jacket, which has to be real leather
Product list:
A: Sandy Ting Leather Fiddler Cap Biker Cap Greek Fisherman Unisex Style - Small Black
B: WULFUL Men's Stand Collar Leather Jacket Motorcycle Lightweight Faux Leather Outwear
Answer: B,A