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.
--------
Question: " Hank 's at his bayonet .

Answer: Changed


Question: The light seemed to come from the diamonds , as if an invasion of blue fireflies had been frozen in midair .

Answer: Original


Question: " Humans have been trying to kill each other since their trickery .

Answer:
Changed