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: John closed the trapdoor behind us , and once in the dark I heaved a sigh .
Example Output: Original

Example Input: As soon as they stepped onto the top step , the front door opened and a man was standing there , smiling .
Example Output: Original

Example Input: Zane wasn 't sure if he was hurting there , or it just made him feel better to hold it .
Example Output:
Original