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.

It is naïve and hopeful to think that they would all testify for peace with us .
Changed

She 'd gotten out of last period to take pictures and document the coming event for the yearbook .
Original

That was a little surprising for Lea , since she didn 't know that many people , but she returned their farewells .

Original