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: spectra synergy gold breast pump
Product list:
A: Spectra - S1 Plus Electric Breast Milk Pump for Baby Feeding
B: Nenesupply Pump Parts Compatible w Spectra S2 Spectra S1 Pumps Not Original Spectra S2 Accessories Spectra S1 Accessories Not Original Spectra Pump Parts Flange 24mm Duckbill Valves Backflow Protector
Answer: A,B