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: air bed without pump
Product list:
A: XuoAz Twin Camping Air Mattress - Inflatable Airbed - Blow Up Mattress King & Queen Size - Without Built-in Electric Pumps
B: Active Era Premium Twin Air Mattress with Built in Pump and Raised Pillow - Elevated Inflatable Mattress 75" x 39" x 18" - Puncture Resistant Blow Up Mattress Air Bed with Waterproof Flocked Top
Answer: A,B