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

[Q]: When or no make that what type of physics model did Einstein fail to make?
[A]: What type of physics model did Einstein fail to make?


[Q]: What type er where can Aeolian sand with a number of dunes be found?
[A]: Where can Aeolian sand with a number of dunes be found?


[Q]: Who had the idea of a natural state for objects in motion, scratch that, I meant at rest?
[A]:
Who had the idea of a natural state for objects at rest?