instruction:
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.
question:
He sent her a smile that seemed fake , and his eyes changed , as did his face .
answer:
Inversion


question:
Steven started for the door but Julie 's voice stopped him .
answer:
Original


question:
I was having trouble even keeping my eyes open , and my heart rate was slowing .
answer:

Inversion