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.

His face was the picture of innocence , but I caught the amusement in his voice .
Original

That hadn 't stopped him from almost losing his objectivity over a woman he barely knew , but it may have been cold as hell out there .
Inversion

No papers were lying on top of the polished surface , but there was a computer on the corner of the large , elegant desk .

Inversion