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: An older couple walks out chatting happily and the elevator opens a few doors down .

SOLUTION: Inversion

PROBLEM: I stepped from my underwear and he stood as his boxers came off .

SOLUTION: Original

PROBLEM: A sigh escaped her mouth , but he caught it .

SOLUTION:
Original