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: big bang theory season 12 blu ray
Product list:
A: The Big Bang Theory: Season 1 [Blu-ray]
B: The Big Bang Theory: The Complete Tenth Season
Answer: B,A