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: wireless backup camera kit
Product list:
A: Bolayu 1/4" CCD Flush Mount Waterproof Truck Car Reverse Backup Rear View Camera
B: Auto CCD HD Rear View Camera Waterproof Monitor Parking Aid Universal Camera
Answer: B,A