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:
' undress , ' Brick screamed .

Ex Output:
Changed


Ex Input:
Rocks that weighted well over four and five hundred pounds .

Ex Output:
Original


Ex Input:
He regulated the atmosphere , used lighting and soothing natural sounds to relieve the continual assault on the brain . "

Ex Output:

Original