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 Input:
" What exactly is a human golem ? "

Ex Output:
Original


Ex Input:
Chalmers shook his head , frustrated by Nightingale 's poor attempt at sundown .

Ex Output:
Changed


Ex Input:
An image of Thiago , angry , intruded into her happiness , and she pushed it away , but there was no pushing away the sunrise .

Ex Output:

Original