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: Chrissie 's mind was already made up and Susannah wondered why her daughter had bothered to ask in the first place .

SOLUTION: Original

PROBLEM: Michael hit him head-on , and the two of them tumbled over headstones .

SOLUTION: Original

PROBLEM: When she tried to open it , it wouldn 't budge , but she ran for the door .

SOLUTION:
Inversion