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.

Q: Who played jj's husband on criminal minds?

A: Joshua Regnall Stewart
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Q: Who was the president of india when first nuclear tests was conducted?

A: Varahagiri Venkata Giri
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Q: The iron pillar near qutab minar in delhi was made by?

A:
Chandragupta II
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