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

[EX Q]: What do increased immune system sorry hormone levels cause in aging adults?
[EX A]: What do increased hormone levels cause in aging adults?

[EX Q]: How many er which plateau is the left part of Vistula on?
[EX A]: Which plateau is the left part of Vistula on?

[EX Q]: How do Ocryopsis er uh platyctenids reproduce?
[EX A]:
How do platyctenids reproduce?