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: The probe and crew had arrived early in the morning and followed me throughout the day .

Output: Changed


Input: Consider Input: " He gave me an obituary .

Output: Changed


Input: Consider Input: I 'd had my blood already ; it was impossible for me to finish off a pint .


Output: Original