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: The fear would seep into the castle , but no one would miss them .

SOLUTION: Inversion

PROBLEM: His laughter faded and his expression hardened .

SOLUTION: Original

PROBLEM: She heard a reply , and the humming noise stopped .

SOLUTION:
Inversion