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 'd really appreciate it if you 'd tell me what your connection is to Marc Dumont and why you 're here pestering me about my family .
Example Output: Changed

Example Input: I opened my eyes and saw the woman retching onto the floor .
Example Output: Changed

Example Input: " I 'll contact Theron and see if his informant is still viable . "
Example Output:
Original