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.

Ex Input:
The sport was too engaging to think about anything except where to aim the felon .

Ex Output:
Changed


Ex Input:
Your nightly search might be merely a manifestation of the stress of what happened to you that day .

Ex Output:
Original


Ex Input:
The hours lapse by .

Ex Output:

Changed