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: The footmen looked relieved when they came into sight .
Example Output: Original

Example Input: I cuddled up next to him .
Example Output: Original

Example Input: Because of this , all meetings had to be called at least ten hours in advance to give workers time to clear away machines and fabrics .
Example Output:
Original