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: Seconds later it exploded , sending out a spray of small metal rods .

Output: Original


Input: Consider Input: I took a deep breath , turned my back on her and in a calm voice called out " The Beast Lord begs the People . "

Output: Changed


Input: Consider Input: The rock face was steep , but provided many hand and footholds to aid in climbing .


Output: Original