In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.

[EX Q]: When did nigeria become a federation of 19 states?
[EX A]: 1976

[EX Q]: Who was the prime minister of assam when the burmese army came with badanchandra?
[EX A]: Badan Chandra Borphukan

[EX Q]: Who won australia's next top model s9?
[EX A]:
Brittany Beattie