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.

[Q]: Category: MUSICAL INSTRUMENTS 
Clue: This instrument that's about half the size of a flute is the smallest woodwind in an orchestra
[A]: piccolo


[Q]: Category: CLASSIC CINEMA 
Clue: In 1915 film, "Birth of a Nation", Joseph Henabery played this president
[A]: abraham lincoln


[Q]: Category: "P.B." 
Clue: Anna Pavlova or Dame Margot Fonteyn, for example
[A]:
prima ballerina