In this task, you are given a sentence. You must judge whether a single noun or verb has been replaced with another word with the same part of speech. The inversion would result in the sentence sounding unnatural, So unnatural sentences will be considered changed. Label the instances as "Original" or "Changed" based on your judgment.

Example Input: Like in our own little payback . "
Example Output: Changed

Example Input: For the last couple of hours , she had stayed locked in her office , scouring the internet .
Example Output: Original

Example Input: They both dropped to a crouch , but the voices didn 't grow louder , verifying that whoever was speaking was probably stationary .
Example Output:
Changed