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

SOLUTION: Original

PROBLEM: You can 't really drive off that many birds , but I tried to beat them off with my hands .

SOLUTION: Inversion

PROBLEM: He didn 't know who was being called , but he would find out .

SOLUTION:
Original