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: CAPTURE THE FLAG 
Clue: Afghanistan's flag has a mosque in a wreath made of stalks of this grain
wheat

Category: LITERATURE 
Clue: Chingachgook became the last of the Mohicans when this man, his son, died
uncas

Category: BALLET 
Clue: Stravinsky & this Russian-born American choreographer collaborated on several ballets including "Agon"

georges balanchine