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:
Who set up the bombing ?

Ex Output:
Original


Ex Input:
The pressure on my mind unraveled .

Ex Output:
Changed


Ex Input:
She would need it all the help she could get , and a lack of confidence caused by a ketchup spot would ruin this whole plan .

Ex Output:

Original