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: killer clowns from outer space
Product list:
A: Clown
B: Clowns Attack Movies 2-DVD Bundle - Killer Klowns from Outer Space + Stephen King's It Double Feature
C: Killer Klowns from Outer Space Men's Rough Clown T-Shirt XX-Large Grey
D: MGM Killer Clowns - Killer Clowns from Outer Space Adult T-Shirt, X-Large Black
Answer: D,B,C,A