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: It gives us some clarification , but I 'm not sure how long Stryker will abide by it . "

A: Changed
****
Q: I tried to invent the group away from physical violence .

A: Changed
****
Q: I rode the elevator , roughly twice the size of my room in my mother 's house , until it pinged me onto the top floor .

A:
Original
****