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.

[EX Q]: Mel crosses her arms and listens to pout .
[EX A]: Changed

[EX Q]: She hadn 't had time to marvel over it then , but she couldn 't help but do so now .
[EX A]: Original

[EX Q]: You 've been ambushed from the police .
[EX A]:
Changed