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.

Example Input: When he spoke , his voice carried a lilting quality usually reserved for singers .
Example Output: Original

Example Input: Dylan didn 't have a faint Irish brogue .
Example Output: Original

Example Input: " And we 'll let you know more after we earn our contractors tomorrow . "
Example Output:
Changed