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 remark has continuity within her own train of thought , but to the others it just seems like a random change of subject .

SOLUTION: Original

PROBLEM: He treaded water for the both of us , holding me up , and I marveled at his strength .

SOLUTION: Original

PROBLEM: It sounded long enough to become painful but Brick hadn 't done the mental arithmetic .

SOLUTION:
Inversion