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: She smiled , ruffling his fur , and he wagged his tail in response .

SOLUTION: Inversion

PROBLEM: I shouldn 't have answered , but I did .

SOLUTION: Original

PROBLEM: The airport had been snowed in for a couple of days and neither of them had clocked any flying time since Christmas .

SOLUTION:
Original