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: Something was off this time ; I could almost feel the heaps .

SOLUTION: Changed

PROBLEM: Finally in the early hours of the morning when floods came we were able to take the trench .

SOLUTION: Changed

PROBLEM: No doubt to sulk though it for any forensic evidence .

SOLUTION:
Changed