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:
Alan stepped toward Marcus , the barrel of the AR-15 digging into his cassock .

Ex Output:
Changed


Ex Input:
The charging portion of the circuits included solar arrays , hacked into the rooftop of the bridge .

Ex Output:
Changed


Ex Input:
He mastered control slowly , watching her closely , his mind still in hers .

Ex Output:

Changed