TASK DEFINITION: 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.
PROBLEM: Her mother used her long nails to fluff her hair .

SOLUTION: Original

PROBLEM: But that doesn 't explain the imprint of the wreckage .

SOLUTION: Changed

PROBLEM: Because that was a douche I was silly to even entertain .

SOLUTION:
Changed