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 robin's mother on how i met your mother?
[EX A]: Tracey Ullman

[EX Q]: Eight furlongs are equal to what standard length?
[EX A]: 1 mile

[EX Q]: When was the kingdom of saudi arabia created?
[EX A]:
23 September 1932