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 force of the earth 's arching was not discriminate between city and human .

Ex Output:
Original


Ex Input:
Then bodies began to sympathize .

Ex Output:
Changed


Ex Input:
As the plastic peeled away , we saw what nobody wanted to see , but the first thing we were weighted with was the reek .

Ex Output:

Changed