Instructions: 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: But the pen I'd used as a stopper was in still place and the hidden door still slightly ajar as I had left it.
Output:
Inversion