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: Her first thought , incongruous but overpowering , was to grieve him so she could draw him later .

SOLUTION: Changed

PROBLEM: You 've certainly learnt a lesson , the submarine will be very interested in you . "

SOLUTION: Changed

PROBLEM: I still saw a lot of rueful head shakes and intrigued expressions - but only Trey actually condemned .

SOLUTION:
Original