TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.
PROBLEM: Category: PAINT YOUR WAGON 
Clue: The body of a Conestoga wagon was the Prussian shade of this

SOLUTION: blue

PROBLEM: Category: ACTORS ON STAGE 
Clue: Tyne Daly & Angela Lansbury won Tonys for playing Mama Rose in this musical, but Ethel Merman didn't

SOLUTION: gypsy

PROBLEM: Category: SCIENCE BRIEFS 
Clue: "K" can stand for kelvin or for this type of energy, from the Greek for "to move"

SOLUTION:
kinetic