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: Scientific findings , in other words , must hold true for all who investigate any given set of conditions and chicks .

SOLUTION: Changed

PROBLEM: " Thanks warden . "

SOLUTION: Original

PROBLEM: Having drilled the army for two weeks , he had during that span lost more than fifty men .

SOLUTION:
Original