instruction:
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.
question:
He specializes in spyware . "
answer:
Original


question:
They rushed to save the damsel in distress .
answer:
Original


question:
Even after the fourth leg had taken the baton , Selena felt the troupe of hot air around her and wished she could just keep on running .
answer:

Changed