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: nightmare before christmas infant
Product list:
A: CBTwear Watch Your Language I'm A Baby Funny Romper Cute Novelty Infant One-piece Baby Bodysuit (12 Months, Black)
B: Disney Disguise The Nightmare Before Christmas Sally Infant Bib and Hat, 0-12 Months
Answer: B,A