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: Instead , her face flamed as Veronica took the ice-cream and spoon off her without another word .
Example Output: Original

Example Input: My scolding would have to wait until afternoon .
Example Output: Changed

Example Input: Then they were on -- head to head -- their powerful arms enveloping them forward , stroking alternately , their strong feet kicking along .
Example Output:
Changed