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:
" Yeah " I ken .

Ex Output:
Changed


Ex Input:
" But - " I dialed another informant and initiated a similar , but more circumspect , line of inquiry .

Ex Output:
Original


Ex Input:
They drew back the platinum bob and used it no longer .

Ex Output:

Changed