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

Example Input: What do er uh what forces can be modeled using ideal friction strings?
Example Output: What forces can be modeled using ideal friction strings?

Example Input: What are  or uh what is the process of adding structure to real property or construction of buildings?
Example Output: What is the process of adding structure to real property or construction of buildings?

Example Input: Up until 1990, Saudi Arabia played an important role in restraining what groups no wait which groups did it play an unimportant role in restraining?
Example Output:
Up until 1990, Saudi Arabia played an unimportant role in restraining what groups?