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: Slade waited for the long tirade with a bite of enjoyment he rarely experienced out of the courtroom .

SOLUTION: Original

PROBLEM: A fog bank began to seep onto the street , hovering a foot above the ground .

SOLUTION: Original

PROBLEM: The power stations and food and weapon storage facilities also had a large contingent of armed guards around them at all times .

SOLUTION:
Original