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

Who was uh construction of what led residents to move from the suburbs?
Construction of what led residents to move from the suburbs?

What do the tentacles on the inner surface no no on plankton do to help them find prey?
What do the tentacles on plankton do to help them find prey?

What are sedimentary layers used to understand er like investigate?
What are sedimentary layers used to investigate?