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 played the first lady in olympus has fallen?
[EX A]: Ashley Judd

[EX Q]: Journal of optics a pure and applied optics abbreviation?
[EX A]: J. Opt.

[EX Q]: Who uses the universal declaration of human rights?
[EX A]:
members of the United Nations