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: He specializes in spyware . "

SOLUTION: Original

PROBLEM: She takes one of the two Beretta and she chooses to pull the trigger , pointing the weapon at me .

SOLUTION: Changed

PROBLEM: When can we go to the innkeeper ? "

SOLUTION:
Changed