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: My stomach drops and I feel sick .

SOLUTION: Original

PROBLEM: His voice seemed even rougher , and it sent a shiver over her .

SOLUTION: Original

PROBLEM: Our marriage collapsing , but we 'd gotten along like this for many years , living in quiet desperation , our kids content enough .

SOLUTION:
Inversion