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: backless body shaper bra with tummy control
Product list:
A: Defitshape Women's Backless Body Shapewear Seamless U Plunge Bodysuit Bridal Thong Shaper Khaki 36 fit 36C/36D/38B
B: Spanx Undie-tectable Thong Soft Nude LG
Answer: A,B