Instruction: Evaluate each product title in the given list, assess its relevance to the given query, and then arrange the products in descending order of relevance, with the most relevant product at the top of the ranked list.

Input:
Query: 10x30 pool without pump and filter
Product list:
A: Intex 28635EG Krystal Clear Cartridge Filter Pump for Above Ground Pools, 1500 GPH Pump Flow Rate, 110-120V with GFCI
B: Intex Swimming Pool- Easy Set, 8ft.x30in.
C: Qicaso 10ft x 30in Inflatable Swimming Pool Easy Set Family Top Ring Pools, Swimming Pool for Kids Adults
D: Intex 10-Foot Round Easy Set Pool Cover
Answer: C,B,D,A