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]: I jumped in Colt 's truck and grabbed the keys from the RV .
[A]: Changed


[Q]: As they expand they can add more stoves . "
[A]: Original


[Q]: ' But to make sure it survives , to get a steady flow of visitors ... ? '
[A]:
Original