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

[Q]: Who was the main detractor of the humoral theory of immunity, oh scratch that, I mean cellular theory?
[A]: Who was the main detractor of the cellular theory of immunity?


[Q]: Since what year did the building er uh university offer a doctorate in music composition?
[A]: Since what year did the university offer a doctorate in music composition?


[Q]: What does or why are people who distribute leaflets inside courthouses not been arrested?
[A]:
Why are people who distribute leaflets inside courthouses not been arrested?