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:
He tapped on the overhead display to awaken it and then displayed a digital diagram .

Ex Output:
Original


Ex Input:
Because of this , they 're usually ranked three stars and above , " Saga explained .

Ex Output:
Original


Ex Input:
There would be time to grieve for Ole ' Betsy later ... right now , we needed to escape .

Ex Output:

Original