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: nest security system for home
Product list:
A: SimpliSafe 11-Piece Home Security Kit
B: NestCam Outdoor HD Security Surveillance Camera w/ 2 Way Audio (2 Pack)
Answer: B,A