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: " Thanks warden . "

Output: Original


Input: Consider Input: " I 'll send you buggers . "

Output: Changed


Input: Consider Input: The tall pine trees cast ominous shadows across the dirt road leading to the abandoned ranger 's station .


Output: Original