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: She walked fast , but he had no trouble keeping up .

SOLUTION: Original

PROBLEM: She looked at him , but he did not say anything .

SOLUTION: Original

PROBLEM: Now it was time once again to pay the piper and all Thompson wanted was a favor every once in awhile .

SOLUTION:
Inversion