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 face was the picture of innocence , but I caught the amusement in his voice .

SOLUTION: Original

PROBLEM: She smiled , ruffling his fur , and he wagged his tail in response .

SOLUTION: Inversion

PROBLEM: She was frozen , and he was too close .

SOLUTION:
Inversion