Instruction: Rank the products A, B, C, ... based on their relevance to the provided query, and produce a ranked list with the most relevant product positioned at the top of the list.

Input:
Query: ps4 back button
Product list:
A: NACON Controller Esports Revolution Unlimited Pro V3 PS4 Playstation 4 / PC - Wireless/Wired - Nacon-311608
B: eXtremeRate Multi-Colors Luminated D-pad Thumbstick L1 R1 R2 L2 Home Face Buttons DTFS (DTF 2.0) LED Kit for PS4 CUH-ZCT2 Controller with Classical Symbols Buttons - 10 Colors Modes 7 Areas DIY Option
C: Ambertown 1 Set Silicone Conductive Rubber Pads for Sony Playstation 4 PS4 Controller for Dualshock 4 Buttons Repair Replacement Part
D: Collective Minds Strike Pack F.P.S. Dominator Controller Adapter with MODS & Paddles for PS4
Answer: D,A,C,B