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: There was a tightness in the tendons of her neck , and her nostrils flared at each breath .

SOLUTION: Original

PROBLEM: He wanted to cut them but Sarah wouldn 't allow it .

SOLUTION: Original

PROBLEM: Rachel 's expression changed mildly from lecturer to co-conspirator but she maintained her formality in tone as she continued .

SOLUTION:
Original