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: INNOVATORS 
Clue: Mr. Alter, who designed a type of catamaran or "cat", goes by this first name
[A]: hobie


[Q]: Category: MOTHER GOOSE 
Clue: It's the type of nail referred to in the nursery rhyme "All for Want of a Nail"
[A]: a horseshoe nail


[Q]: Category: PARADES 
Clue: Irving Berlin penned 17 musical numbers for this Fred Astaire-Judy Garland holiday film
[A]:
easter parade