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: ncis season 18 on amazon prime
Product list:
A: NCIS: Season 7 [DVD]
B: NCIS: Season 1
C: NCIS: Season 6
Answer: C,B,A