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.

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

Output: Original


Input: Consider Input: My stomach drops and I feel sick .

Output: Original


Input: Consider Input: Nothing had changed across the street , but her gaze darted to the window .


Output: Inversion