instruction:
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.
question:
Which is the new member of nato in 2017?
answer:
Montenegro


question:
Who does the voice for chris on family guy?
answer:
Seth Green


question:
Who was the first us president to be nominated at a large party convention?
answer:

Andrew Jackson