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:
I 'd figured that the faeries would be out on Halloween , but for some reason I 'd thought they 'd stay on their hills .

Ex Output:
Original


Ex Input:
And his eyes were so warm and brown they didn 't seem to match his stiff opposition .

Ex Output:
Changed


Ex Input:
Now the ache came back , originating at her bicep and rolling up her arm .

Ex Output:

Original