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.

Her mother stuck her head around the doorframe , and there was a knock on the door .
Inversion

It was slung over his shoulder and he had his tuxedo in a garment bag .
Inversion

A length of bridge several feet long was instantly awash in flame , and Oil splashed outward , ignited .

Inversion