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

[EX Q]: What is the the old north no the old south branch of the Rhine called?
[EX A]: What is the the old south branch of the Rhine called?

[EX Q]: What is sorry What makes detection by killer T cells more likely?
[EX A]: What makes detection by killer T cells more likely?

[EX Q]: Qwest no rather Abilene was a prime investor in what project?
[EX A]:
Abilene was a prime investor in what project?