Instruction: Evaluate each product title in the given list, assess its relevance to the given query, and then arrange the products in descending order of relevance, with the most relevant product at the top of the ranked list.

Input:
Query: smithsonian stem
Product list:
A: Horizon Group USA Discovery Touch & Sound Activated Plasma Globe, Stem Science, Interactive Electronic Touch & Sound Sensitive Desk Lamp, Assorted Color (84434G)
B: Smithsonian Science Activities Rocket Science Kit
C: Discovery Kids #MINDBLOWN Model Engine Kit, DIY Mechanic Four Cycle Internal Combustion Assembly Construction, Comes W/Valves, Cylinders, Hardware & More, Encourages STEM Creativity/Critical Thinking
Answer: B,A,C