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.

Input: Consider Input: Then he walked rapidly to the nightstand and snatched up his wristwatch .

Output: Original


Input: Consider Input: Though my hands were trembling , I lifted my gaze and met his without flinching .

Output: Original


Input: Consider Input: Trevor 's guard flew up , but he was curious to hear what his dad wanted to disclose .


Output: Original