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: keyboard for ipad pro
Product list:
A: Touchpad Keyboard Case for iPad Pro 12.9 inch 2021 5th Generation / 2020 4th Gen / 2018 3rd Gen, iPad Pro 12.9 Case with Wireless Bluetooth Backlight Keyboard - Pencil Holder Included (Black)
B: OMOTON Ultra-Slim Bluetooth Keyboard Compatible with iPad 10.2(8th/ 7th Generation)/ 9.7, iPad Air 4th Generation, iPad Pro 11/12.9, iPad Mini, and More Bluetooth Enabled Devices, White
Answer: B,A