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]: It was on a swivel base , operated by a crank at the left-hand side .
[EX A]: Original

[EX Q]: He shut the car door and swiftly strode around the woodpile to take the driver 's seat .
[EX A]: Changed

[EX Q]: I would babysit for her often and loved spending time with her , and masking her rotten ( or spending time spoiling her rotten ) .
[EX A]:
Changed