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.

The ledge of the cliff he would fight from was easy to find and it had a thick shield of grass that he could use for cover .
Original

The room was filled with steam now , and as she looked over at the mirror she realised that the smiley face had gone .
Original

The second boy fled so I decided to look further into the matter and a few minutes later the door opened .

Inversion