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: He was free at last.

SOLUTION: Original

PROBLEM: At the feel of fingers her against him, Riley's breath escaped on a ragged sigh.

SOLUTION: Inversion

PROBLEM: a calls voice over the speakers.

SOLUTION:
Inversion