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: boy cinch vest
Product list:
A: Scully Boys' Boar Suede Vest Black X-Small
B: STEARNS Original Puddle Jumper Kids Life Jacket | Deluxe Life Vest for Children, Blue Flower, 30-50 pounds
Answer: A,B