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: A yell sounded from inside , and I raised my eyebrows .

SOLUTION: Original

PROBLEM: Luke knows and Magnus knows .

SOLUTION: Original

PROBLEM: She tugged on the bill of his ball cap , and he grinned .

SOLUTION:
Original