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:
They were hard to read compared with digital notebooks .

Ex Output:
Changed


Ex Input:
It was titled : Riddle of the Pink Pyjamas The writing was hard to make out .

Ex Output:
Original


Ex Input:
The criminal is always a loner , and outside of society .

Ex Output:

Original