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:
It 's a chance to meet , mingle , get to know other people .

Ex Output:
Original


Ex Input:
What did they mean by repercussions from the head injury ?

Ex Output:
Original


Ex Input:
Thankfully , a pair of matching blue wildflowers accompanied the tunic .

Ex Output:

Changed