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:
The gnome leaned over the cash register .

Ex Output:
Changed


Ex Input:
It is naïve and hopeful to think that they would all testify for peace with us .

Ex Output:
Changed


Ex Input:
For us everything turns on preventing that junction .

Ex Output:

Original