You will be given a definition of a task first, then some input of the task.
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.

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