TASK DEFINITION: Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
PROBLEM: Which two er who had no influence in promoting the use of chemical compounds as medicines?

SOLUTION: Who had no influence in promoting the use of chemical compounds as medicines?

PROBLEM: How long did Warsaw last as the capital of the Russian oh no not Russian but the Polish-Lithuanian Commonwealth?

SOLUTION: How long was Warsaw the capital of the Polish-Lithuanian Commonwealth?

PROBLEM: Who was  no Who is known for calculating the speed of nuclear reactions?

SOLUTION:
Who is known for calculating the speed of nuclear reactions?