Instruction: Given a query and a list of products denoted as A, B, C, ... with their titles, rank the products according to their relevance to the query. Output only a ranked list in which the most relevant product is at the top of the list.

Input:
Query: purple keychain
Product list:
A: SABRE Pepper Spray with Finger Grip and Key Ring, 25 Bursts, 10-Foot (3-Meter) Range, Flip Top Safety, UV Marking Dye
B: Reizteko Cute Big Ears Elephant Keychain Sparkling Keyring Crystal Purse Pendant Rhinestones Handbag Charm (Purple)
Answer: B,A