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:
After the delirium took it for many days , so many nights , even factors could calm her down .

Ex Output:
Changed


Ex Input:
Kent , the one who built this amazing ship , stands at the wheel , fighting the wind that threatens to blow us off course .

Ex Output:
Original


Ex Input:
Do you have a reactor back in your room ? "

Ex Output:

Original