Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.

Q: What is Warsaw's National Museum most known for?

A: Warsaw's National Museum is one of the most what?
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Q: How many or uh civil Disobedience is mainly performed by what population group?

A: Civil Disobedience is mainly performed by what population group?
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Q: In what two age groups is the strength of the thymus hmm no uh immune system reduced?

A:
In what two age groups is the strength of the immune system reduced?
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