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: ' Hold quite still or I 'll gnaw you ! '

SOLUTION: Original

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

SOLUTION: Original

PROBLEM: I think of staying with him , helping carry him to the morgue , but give up on it .

SOLUTION:
Original