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.

Example Input: The doors opened , and the elevator stopped .
Example Output: Inversion

Example Input: His face was the picture of innocence , but I caught the amusement in his voice .
Example Output: Original

Example Input: He knew she was doing a great deal more than simply walking out of a room , and then she walked away from him .
Example Output:
Inversion