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.

Category: ELTON JOHN 
Clue: In 1997 Elton John recorded a new version of this song as a tribute to Princess Diana
"candle in the wind"

Category: I'M A PEPPER, YOU'RE A PEPPER 
Clue: This pungent herb's scientific name is Mentha piperita
peppermint

Category: MATH CLASS 
Clue: It's the square root of the square root of 16

2