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: His voice was urgent and his eyes were bright .

SOLUTION: Inversion

PROBLEM: The front door to his suite had opened and she 'd assumed it must be the maid .

SOLUTION: Original

PROBLEM: I knew that the trouble The Shade was experiencing was taking its toll on their marriage but we hadn 't spoken much .

SOLUTION:
Inversion