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.

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

Michael hit him head-on , and the two of them tumbled over headstones .
Original

They hadn 't got there yet , but if they saved up enough money , one of them could finish college .

Inversion