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: true crime kindle books free
Product list:
A: American Unsolved Mysteries: A Stunning Look at Some of the Most Famous Unexplained incidents and Events of America that have puzzled greatest minds....
B: A Missing Girl Lost Life: A true murder and mystery suspense thriller an absolutely unputdownable psychological gripping thrilling crime story
Answer: B,A