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

Example Input: Are most vexilligera the same or no um are ctenophores the same or different color?
Example Output: Are most ctenophores the same or a different color?

Example Input: What is one aspect of the hydrography of the former stream urgh delta characterized by?
Example Output: What is one aspect of the hydrography of the former delta characterized by?

Example Input: What river runs through Poland or no make that through Carpathia?
Example Output:
What river runs through Carpathia?