Instruction: Rank the products A, B, C, ... based on their relevance to the provided query, and produce a ranked list with the most relevant product positioned at the top of the list.

Input:
Query: ergonomic office chair without wheels
Product list:
A: Flash Furniture Black Mesh Sled Base Side Reception Chair with Flip-Up Arms
B: NOUHAUS Ergo3D Ergonomic Office Chair - Rolling Desk Chair with 3D Adjustable Armrest, 3D Lumbar Support and Blade Wheels - Mesh Computer Chair, Gaming Chairs, Executive Swivel Chair (Black)
Answer: A,B