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.

It takes very little energy , and it 's an easy way to motivate people to do things .
Original

From a crack of light around a far door he heard shouts , stamping feet and bags or faces getting pummelled .
Original

What they lacked in combat dehydration , they made up in other skills .

Changed