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: electric wheelchair knee rest
Product list:
A: Vive 4 Wheel Mobility Scooter - Electric Powered Wheelchair Device - Compact Heavy Duty Mobile for Travel, Adults, Elderly - Long Range Power Extended Battery with Charger and Basket Included
B: Intelligent Lightweight Foldable Electric Wheelchair, Compact (Net Weight 43 lbs) Power Wheelchair, Portable Folding Carry Wheelchairs, Durable Wheelchair (12.6 x 22 x 28)
C: KneeRover Economy Knee Scooter Steerable Knee Walker Crutch Alternative with DUAL BRAKING SYSTEM in Matte Black
Answer: B,A,C