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 hallway on the other side was empty , as I expected it to be , but I peered through the glass .
Inversion

It was empty , but he kept it as a reminder of his purpose .
Original

It worked without fail , and the dust was an old Hoodoo trick used to keep out unwanted spirits .

Inversion