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: Her sister had been through the wringer in the romance department , but when Chris landed in her life everything changed for the better .
Example Output: Original

Example Input: I want to grin , but I fight the urge .
Example Output: Original

Example Input: That lead to a hallway , and another cavern was ahead .
Example Output:
Original