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]: When does new series of benidorm start 2018?
[EX A]: 28 February 2018

[EX Q]: Who composed the song it is well with my soul?
[EX A]:
Philip Paul Bliss