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.

Q: Category: THE HISTORY OF APRIL 9th 
Clue: 1959: NASA publicly introduces Messrs. Glenn, Shepard & the rest of this program's 7 astronauts

A: mercury
****
Q: Category: SNOWY SONGS 
Clue: He "looked out on the feast of Stephen, when the snow lay round about, deep and crisp and even"

A: good king wenceslas
****
Q: Category: OUT FOR A "SPIN" 
Clue: Sleeping Beauty's parents tried to have all of these burned

A:
spinning wheels
****