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: Elias kept hitting balls the in one by one.

SOLUTION: Inversion

PROBLEM: He stopped moving and slowly back eased.

SOLUTION: Inversion

PROBLEM: During those years three, I'd never once cal ed out for help, never stopped the insanity of living unprotected among mortals.

SOLUTION:
Inversion