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: My tongue flicks out and runs inside her low-cut shirt and bra , reaching until it flicks against her nipple .

Answer: Original


Question: He had to be proactive , because being reactive would only end up in chaos , arrests , and more shit than he wanted to deal with .

Answer: Original


Question: The kids frequently received souvenirs and assorted trinkets from the Collin 's , and looked forward to their return visit some day in the future .

Answer:
Original