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.

[Q]: " The heads of the Arab states and the Majlis have authorized me to make you an offer . "
[A]: Original


[Q]: There must have been two hundred lakes and our unit was only forty , so the only thing we could have done was die alongside the others .
[A]: Changed


[Q]: " I beg to differ , " he said as he lifted the silver cover off both plates and looked down curiously .
[A]:
Original