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: mini split ac/heating system cover
Product list:
A: Senville SENL-12CD Mini Split Air Conditioner Heat Pump, 12000 BTU 19 SEER
B: Klimaire 12,000 BTU KSIV 19 SEER Ductless Mini-Split Inverter Air Conditioner Heat Pump System with 15-ft Installation Kit and Wall Bracket 115V
Answer: B,A