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.

It took me four miserable hours of hard labor , but I got it done .
Original

I started up the engine and David asked as he closed my car door .
Inversion

Slowly his mouth turned up at the corners as he smiled and when he opened his eyes , he looked at his family .

Inversion