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: car radio mp3 player am / fm
Product list:
A: Universal FM Transmitter Support Bluetooth Hands-Free MP3/WMA Wireless Car Kit Radio Receiver for iPhone 7 6S/Samsung Galaxy S7 S6/MP3 Player
B: GZYF Car FM Transmitter Bluetooth Wireless Radio Adapter USB Charger MP3 Player
Answer: A,B