instruction:
Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
question:
What is the longest um no the shortest river in Germany?
answer:
What is the shortest river in Germany?

question:
In what battle were the Tran dynasty no the um what was their names oh Mongols joined by the Tran?
answer:
In what battle were the Mongols joined by the Tran?

question:
What was the Australian public X.25 er X.75 network operated by Telstra?
answer:
What was the Australian public X.75 network operated by Telstra?