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: He was about to neigh in happiness , but Monika quietly covered his mouth .

SOLUTION: Original

PROBLEM: He stepped neatly to one side to let her through , but she settled for flicking Nicky a murderous look .

SOLUTION: Original

PROBLEM: Then Felix wandered off alone , and Reuben returned to his vigil .

SOLUTION:
Original