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: foam matresses topper full
Product list:
A: Linenspa 3 Inch Gel Swirl Memory Foam Topper, Full
B: ZINUS 4 Inch Green Tea Cooling Gel Memory Foam Mattress Topper / Cooling Gel Foam / CertiPUR-US Certified, Full
Answer: B,A