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 wanted to write a story that distilled love down to its essence .

Ex Output:
Original


Ex Input:
Dylan didn 't have a faint Irish brogue .

Ex Output:
Original


Ex Input:
They were joined at the ankle by a pair of black pants with a yellow stripe on each leg .

Ex Output:

Original