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.

He laughed , but without any merriment in his pale blue eyes .
Original

Rosencrantz and Guildenstern have their own fates but I must be there for the last act , the last scene .
Original

A great abundance of hurried foot steps .

Changed