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: alexa echo 3rd generation
Product list:
A: Caramote Portable Battery Base for Amazon Echo (3rd Gen) and Echo Plus(2nd Generation), Battery Base Makes Them Portable,Not for Echo (2nd Generation) and Echo Plus(1st Generation)
B: Echo Loop - Smart ring with Alexa - A Day 1 Editions product - Extra Large
Answer: A,B