In this task you are given a sentence with one coordinating conjunction (for, and, nor, but, or, yet, and so). You must judge whether the order of two coordinated clausal conjoints have been inverted or not. Inversion would result in the sentence sounding unnatural. Label the instances as "Original" or "Inversion" based on your judgment.
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Question: Displays went blank , and Indicator lights darkened .

Answer: Inversion


Question: John closed the trapdoor behind us , and once in the dark I heaved a sigh .

Answer: Original


Question: All of them were armed with weapons and all of them meant business .

Answer:
Original