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: When I the reach front door, I knock.

Output: Inversion


Input: Consider Input: And Rand Ayn, but hers was only one.

Output: Inversion


Input: Consider Input: How could unlucky she possibly be ?


Output: Inversion