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]: " Okay , maybe a thousand , " the man said quickly , backtracking .
[EX A]: Original

[EX Q]: Isaac and the others are scouting in New York . "
[EX A]: Original

[EX Q]: Sydney had tagged the vehicle so that Jasper would know what ride to look for at the scene .
[EX A]:
Original