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.

Collecting secret information , surveillance , unarmed combat , shooting , blackmail , sabotage , contractor , jungle survival -- bah !
Changed

They were hard to read compared with digital notebooks .
Changed

Back in the fight , Valeria kept moving back while throwing jabs , which kept Lea away from Valeria .

Original