Instruction: Analyze the query and each product title. Sort the products in descending order based on their relevance to the query. The most relevant product should be at the top of the list, and output the ranked list.

Input:
Query: motor shaft adapter
Product list:
A: Karcy 50Pcs RC Aluminum Bullet Propeller Adapter Holder for Brushless Motor Prop (3.17mm Aperture and 5mm Output axle)
B: 4-Pack 7mm Flexible Coupling Connector for Any Motors with Shaft Diameter of 0.275in/7mm - Car Wheels Tires Shaft
Answer: B,A