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 wrote the patriotic song sare jahan se achcha?

A: Muhammad Iqbal
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Q: In mahabharata who was father of chitrasena vrishsena?

A: Karna
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Q: Who wrote most of hall and oates songs?

A:
Daryl Hall and John Oates
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