Instruction: Evaluate the relevance of each product title in the input to the given query, and then sort the products in descending order of relevance, placing the most relevant product at the top of the ranked list.

Input:
Query: zurn qkipsp 5 port plastic manifold without valves
Product list:
A: Zurn P6003-A-AA-CP 3/4" x 9 Flush Tube/Vacuum Breaker w/Nut-CP
B: Zurn P6900-MV-XL Mixing Valve Low Lead
C: Zurn PEX QKIPSP Manifold, 5 Ports No Valves, Plastic
D: Zurn 34UFX34F-700XL Lead-Free Union FNPT Dual Check Valve
Answer: C,B,A,D