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

Input: Consider Input: What happens when the what cause the immune system to treat foreign organisms like normal tissues?

Output: What causes the immune system to treat foreign organisms like normal tissues?


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

Output: What forces can be modeled using ideal friction strings?


Input: Consider Input: What force is part of the modern arcane no SI system?
Output: What force is part of the modern SI system?