TASK DEFINITION: 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.
PROBLEM: Category: NATIVE AMER. WOMEN 
Clue: Even after their marriage ended, this Osage Indian was still Balanchine's Sugar Plum Fairy

SOLUTION: tallchief

PROBLEM: Category: U.S. PRESIDENTS 
Clue: On August 4, 1753 Lodge No. 4 in Fredericksburg, Virginia initiated him into the Masons

SOLUTION: george washington

PROBLEM: Category: AT THE MOVIES 
Clue: Dan Aykroyd played Mack Sennett in this 1992 biopic starring Robert Downey, Jr.

SOLUTION:
chaplin