TASK DEFINITION: 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.
PROBLEM: Sasha opened her mouth but Peterson cut her off .

SOLUTION: Original

PROBLEM: He fell asleep and his eyes shut .

SOLUTION: Inversion

PROBLEM: I gasped and his member brushed across my leg .

SOLUTION:
Inversion