instruction:
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.
question:
Category: SONGS 
Clue: The title song in an Elvis film, it was written for the 1937 Bing Crosby film "Waikiki Wedding"
answer:
blue hawaii


question:
Category: ON THE GO 
Clue: John Ericsson, who built a steam locomotive in England in 1829, built this famous Civil War steam-powered ship
answer:
the monitor


question:
Category: MAMMALS 
Clue: Despite their incredibly long necks, giraffes have only this many neck bones, the same as humans
answer:

7