Instruction: Evaluate the relevance of each product title in the input to the given query, and then sort the products in descending order of relevance, placing the most relevant product at the top of the ranked list.

Input:
Query: rv radio cd dvd player
Product list:
A: BOSS Audio BV6658B Car Stereo DVD Player  Single Din, Bluetooth Audio and Hands-Free Calling, Built-in Microphone, CD/DVD/MP3/USB/AUX Input, AM/FM Radio Receiver, LCD Display, Wireless Remote Control
B: MYDASH CD/DVD Player, Wall Mountable CD/DVD Player Portable with Bluetooth Built-in HiFi Speakers with Remote, CD Player Boombox Support 1080P HDMI Output FM Radio USB AV Out Headphone Jack
Answer: B,A