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

What does er when economic inequality is larger, more waste and pollution is?
When economic inequality is larger, more waste and pollution is?

What is the longest um no the shortest river in Germany?
What is the shortest river in Germany?

How or no make that what characteristics did the common ancestor of lagerstatten have?

What characteristics did the common ancestor of lagerstatten have?