Instruction: Given a query and a list of products denoted as A, B, C, ... with their titles, rank the products according to their relevance to the query. Output only a ranked list in which the most relevant product is at the top of the list.

Input:
Query: freon recovery machine
Product list:
A: FAVORCOOL 3.0CFM 1/4HP Air Vacuum Pump with Manifold Gauge Set for Freon Charging,fits R410A, R134A, R22 Refrigerants, for HVAC Car Truck A/C AC Refrigerant Charge Kit, Quick Couplers
B: Elitech LMC-100F Refrigerant Charging Weight Scale High Precision for HVAC with Case 110Lbs
C: Robinair (34102) Refrigerant Tank for R-134a, refrigerant not included - 30 lbs. , Light Blue
Answer: A,C,B