TASK DEFINITION: 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.
PROBLEM: I thought it was a mirage .

SOLUTION: Original

PROBLEM: " When they broke the news about the reforms , I didn 't have the credits to provision the ship , " Surge explains .

SOLUTION: Original

PROBLEM: I could feel an ugly expression tighten my face as I packed up my violin and closed the case .

SOLUTION:
Original