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: And he added , " We all know you 're fast with the ravine . "

Output: Changed


Input: Consider Input: " Books of them .

Output: Changed


Input: Consider Input: But letting him know about the ultrasound was the right decision .


Output: Original