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:
' Hold quite still or I 'll gnaw you ! '

Ex Output:
Original


Ex Input:
Eva Roberts said that it would be extremely helpful if she could find any dampness .

Ex Output:
Changed


Ex Input:
Standing in the middle of the hall was the silhouette of a figure in black , obscured by the bright morning shine against the parapet .

Ex Output:

Changed