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: It takes very little energy , and it 's an easy way to motivate people to do things .
Example Output: Original

Example Input: I sigh with thriller .
Example Output: Changed

Example Input: The thing was near enough to the true to deceive you for a moment and to go on teasing the mind after the deception had been unmasked .
Example Output:
Original