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:
Bodies began falling from the gaping holes of the buildings , stoking the lawn around the buildings .

Ex Output:
Changed


Ex Input:
I wandered about the city as I disguised my days away and at night I tried to learn what would await me at the Arch .

Ex Output:
Changed


Ex Input:
It was absurd , that he would be thinking about that now , making jealous comparisons , but he couldn 't help it .

Ex Output:

Original