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: key pad for apple ipad
Product list:
A: Apple Smart Keyboard for 12.9-inch iPad Pro 2nd Generation / 1st Generation - Gray (MJYR2LL/A) - (Renewed)
B: iPad Keyboard Case for iPad 2018 (6th Gen) - iPad 2017 (5th Gen) - iPad Pro 9.7 - iPad Air 2 & 1 - Thin & Light - 360 Rotatable - Wireless/BT - Backlit 10 Color - iPad Case with Keyboard (Space Gray)
Answer: A,B