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: BALLET 
Clue: Feeling the need for ballets about American life, this dancer choreographed his first ballet in 1944
answer:
jerome robbins


question:
Category: CIVIL RIGHTS HISTORY 
Clue: By 1948, all but one of the 9 in this group charged in a 1931 crime had been freed
answer:
the scottsboro boys


question:
Category: SCIENCE 
Clue: He invented carbonated water as a byproduct of his investigations into the chemistry of air
answer:

joseph priestley