Instruction: Given a query and a list of products denoted as A, B, C, ... with their titles, rank the products according to their relevance to the query. Output only a ranked list in which the most relevant product is at the top of the list.

Input:
Query: ipad pro 12.9 case without pencil holder
Product list:
A: Aoub Case for iPad Pro 12.9 2020 & 2018, Auto Sleep/Wake Slim Lightweight Trifold Stand Smart Cover, Soft TPU Back Case with Pencil Holder for iPad Pro 12.9 inch, Sky Blue
B: auaua iPad Pro 12.9 2021 case, 5th/4th/3rd Generation Stand Cover with Pencil Holder, Auto Sleep/Wake, Vegan Leather (Brown)
C: Ztotop Case for iPad Pro 12.9 Inch 2017/2015 (Old Model,1st & 2nd Gen), Premium Leather Folding Stand Folio Cover with Auto Wake/Sleep, Document Card Slots and Multiple Viewing Angles, Navy Blue
Answer: C,B,A