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: Victor shook his head in disagreement but he said nothing .

SOLUTION: Original

PROBLEM: I already got the wood and nails for them from a carpenter .

SOLUTION: Original

PROBLEM: They knew nothing of the myriads of advanced technologies he had to coordinate .

SOLUTION:
Changed