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 ledge of the cliff he would fight from was easy to find and it had a thick shield of grass that he could use for cover .

SOLUTION: Original

PROBLEM: Yeah , I was a fool , but I wasn 't stupid .

SOLUTION: Original

PROBLEM: It was marred with embarrassment but now the blush had returned .

SOLUTION:
Inversion