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: He would bend me over into the scalding spray , and we would have sex like that .
Example Output: Original

Example Input: " Was it your savages ? "
Example Output: Original

Example Input: No doubt his skiff of late , plus the boy 's amazing resemblance to his sister , had caused a confused reaction inside him .
Example Output:
Changed