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: half circle window shade
Product list:
A: Kirsch Arched Curtain Rod for Curved Windows, 24" to 48"
B: Fypon SWDH48X24 48"W 24"H Sunburst Window Pediment Half Round, Urethane
C: Redi Shade 1617201 Blackout Pleated Paper Shade, 36 in x 72 in, 6-Pack, Black
Answer: B,C,A