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.

Q: Charles was worried because when you were summoned by the Council , the algorithm gave you only a location and a half-hour window of time .

A: Original
****
Q: The jury was sequestered , and the longer the trial dragged on , the more blame the dorms would heap upon the party now calling the witnesses .

A: Changed
****
Q: Both the driver and occupant were very aware of their surroundings , looking in all directions for any activity , as they walked back to their vehicle .

A:
Original
****