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

When is uh instead uh what region does use the term 'private schools' to refer to universities?
What region does use the term 'private schools' to refer to universities?

What is the name of a prime number, oops my bad, an algebraic structure in which addition, subtraction and multiplication are defined?
What is the name of an algebraic structure in which addition, subtraction and multiplication are defined?

What type of republic dude I mean sanctions has Canada directed at Iran?
What type of sanctions has Canada directed at Iran?