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 pressure on my mind unraveled .

Ex Output:
Changed


Ex Input:
But that doesn 't explain the imprint of the wreckage .

Ex Output:
Changed


Ex Input:
She doubted if many winners at this price were this clean .

Ex Output:

Changed