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.
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Question: He quickly fell into his familiar role of coach , targeting his team .

Answer: Changed


Question: On each side of the head , near the ears , grew an antenna through which it tagged with others .

Answer: Changed


Question: He hurried forward , half skating on the slick surface .

Answer:
Original