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]: The footmen looked relieved when they came into sight .
[EX A]: Original

[EX Q]: All the braves would show up in force , and the field could have over a hundred players on it .
[EX A]: Original

[EX Q]: He forgot he was in an unarmed reconnaissance machine , and when he thought he was styling his guns he actually set the cameras off on automatic .
[EX A]:
Changed