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

What is negatively correlated to the duration of GDP or make that of economic growth?
What is negatively correlated to the duration of economic growth?

What did the Montreal Protocol try to address no no the Kyoto Protocol?
What did the Kyoto Protocol try to address?

In what year did the clergy uh plague begin in England?
In what year did the plague begin in England?