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.

Example Input: I lifted my shirt , revealing two deep gouges in my chest with blood gushing out .
Example Output: Changed

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

Example Input: The bus was due any minute , but they did not want to disobey the old man 's wish and sat down awkwardly next to him .
Example Output:
Original