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: DIMENSIONS 
Clue: Don't lose the thread--there are 10 or so dimensions in this physics theory
answer:
string theory


question:
Category: TRANSPORTATION 
Clue: An aircraft that can take off & touch down on water or land is called this, like a class of animals
answer:
amphibious


question:
Category: NAME THAT 1990s YEAR 
Clue: An earthquake levels buildings & overpasses in L.A. on January 17
answer:

1994