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: iphone xr bumper case no back
Product list:
A: L-FADNUT Case for iPhone 11 Case Frame-Less Design Matte Hard Plastic Back Cover TPU Shockproof Bumper Corner Ultra Slim Thin Translucent Proetctive Phone Case for iPhone 11 Blue
B: Humixx Crystal Clear iPhone XR Case, [Military Grade Drop Protection] with Anti- Drop Hard PC Back and Soft TPU Edge, Shockproof Protective Case Designed for Apple iPhone XR(2020)-Clear
C: OATSBASF Bumper Case for iPhone XR, Aluminum Utral-Thin Corner Cover Minimalist Bumper Case for iPhone XR 6.1-inch
Answer: C,B,A