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]: Who is the boy in rihanna's we found love video?
[EX A]: Dudley O'Shaughnessy

[EX Q]: When did leningrad changed back to st petersburg?
[EX A]: 6 September 1991

[EX Q]: What was the capital of north vietnam in the mid 1950s?
[EX A]:
Hanoi