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

[EX Q]: How did or no rather what did Mongols worship?
[EX A]: What did Mongols worship?

[EX Q]: When was no How long was the Leon Theatre in operation?
[EX A]: How long was the Leon Theatre in operation?

[EX Q]: How common instead what are phytoplankton?
[EX A]:
What are phytoplankton?