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: Ian , with his Bug eyes , had invited me to visit him in St. Louis .

A: Changed
****
Q: The first song she 'd put on was her present favorite , Pink 's latest , but it was near the end of the playlist .

A: Original
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Q: " I wasn 't the only shopper in there , that 's why .

A:
Original
****