In this task you are given a sentence. You must judge whether there exist two consecutive words within the sentence with flipped orders, that is, whether the sentence will make sense and be correct if the order of two consecutive words changes. Label the instances as "Inversion" or "Original" based on your judgment.

Input: Consider Input: Lief waited just by the of edge the cliff, pacing back and forth.

Output: Inversion


Input: Consider Input: My brothers and I thought we should look wise and venerable.

Output: Original


Input: Consider Input: Her lower lip trembled and she shook her head.


Output: Original