Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
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Question: What is the chemical, no what is a mechanical barrier in insects that protects the insect?

Answer: What is a mechanical barrier in insects that protects the insect?


Question: What did the English root tobacco imply no no uh pharmakos?

Answer: What did the English root pharmakos imply?


Question: What cultures were part of Jurchens' umm Kublai's administration?

Answer:
What cultures were part of Kublai's administration?