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.

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

She had not been alarmed , and he had walked past the doorway of the room in which Mrs. Armstrong was working .
Inversion

I didn 't have any words , but I tried to tell him .

Inversion