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 simplicity, answers should be in all lower cased letters.

[EX Q]: Category: ARCHITECTS 
Clue: Dallas-Fort Worth Airport architect Gyo Obata helped design this Smithsonian museum
[EX A]: air & space museum

[EX Q]: Category: LEGENDS 
Clue: The "Literature Lover's Book of Lists" says this engineer "blew his train whistle in a special way"
[EX A]: casey jones

[EX Q]: Category: 1853 
Clue: 2 of his best-known works debuted, "Il Trovatore" & "La Traviata"
[EX A]:
giuseppe verdi