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

What helps or rather what are found in fossils?
What are found in fossils?

What does the\u007f Rhine no rather Untersee mean?
What does Untersee mean?

The movements  no Cydippids combs are controlled by what?

Cydippids combs are controlled by what?