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

What were, uh actually, what does Frame Relay's LAPB provide?
What does Frame Relay's LAPB provide?

When did Goldbach or wait Landau propose his four conjectural problems?
When did Landau propose his four conjectural problems?

What did the Institute for Policy Studies no richest 40 Americans have as children that helped them be successful adults?
What did the richest 40 Americans have as children that helped them be successful adults?