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: Because of this , they 're usually ranked three stars and above , " Saga explained .

SOLUTION: Original

PROBLEM: That 's what life 's all about , isn 't it , luv ? "

SOLUTION: Original

PROBLEM: The electrician had already heard about the false start that had occurred that afternoon .

SOLUTION:
Original