TASK DEFINITION: In this task you are given a sentence. You must judge whether there exist two consecutive words within the sentence with flipped orders, that is, whether the sentence will make sense and be correct if the order of two consecutive words changes. Label the instances as "Inversion" or "Original" based on your judgment.
PROBLEM: Reluctantly, Mitch started the Silver Bullet's engine.

SOLUTION: Original

PROBLEM: They didn't want return to to the hospital, they didn't think it was a good idea.

SOLUTION: Inversion

PROBLEM: That when had they gained technology, they had lost history.

SOLUTION:
Inversion