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: harry potter adult costumes
Product list:
A: QXFQJT Novelty Glasses Striped Tie with Wizard Wand, Bolt Scar Tattoo, Cosplay Party Costumes Accessories Kid's Gift, 5PCS
B: Harry Potter Adult Robe
Answer: B,A