TASK DEFINITION: Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
PROBLEM: What did the American Philosophical Society do with the memoir what did they produce in 1809?

SOLUTION: What did the American Philosophical Society produce in 1809?

PROBLEM: What organization er what is the UN's climate change treaty?

SOLUTION: What is the UN's climate change treaty?

PROBLEM: Why was Wegener's theory important for understanding volcanos er uh the lithosphere?

SOLUTION:
Why was Wegener's theory important for understanding the lithosphere?