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

Q: When did What centuries did the Roman times take place within?

A: What centuries did the Roman times take place within?
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Q: How are no Health problems were higher in places with higher levels of what?

A: Health problems were higher in places with higher levels of what?
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Q: What flows uh what is the Rhine Gorge known for?

A:
What is the Rhine Gorge known for?
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