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.

Q: Mack 's breeding was a pleasant surprise .

A: Changed
****
Q: She was ready to cry after them to prevent it , but they bypassed the door .

A: Original
****
Q: My body felt weightless , I felt as if nothing were warring with me at all .

A:
Changed
****