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: Sucking on hard candy had helped her through the worst of the nicotine withdrawal , and four years earlier she 'd quit smoking .

SOLUTION: Inversion

PROBLEM: I looked over at my mother and we both started laughing .

SOLUTION: Original

PROBLEM: He knows it and I hate him .

SOLUTION:
Inversion