Definition: In this task, you will be given a short story. One sentence from the story is chosen. Consider the events that happen before that sentence, or are likely to have happened before it. Does any of them directly cause it, or simply make it possible? You should write your answer in the form " A >causes/enables> B". Try to use phrases and sentences from the story to compose your answer when possible.
Input: story: Mitch stayed at a hotel for a week one time. The maid would change his sheets even though she didn't have to. On the last day Mitch was there he left a large tip for the maid. When Mitch was checking out, the maid came up to him and thanked him. Mitch told her she deserved it and smiled as he walked away.
 selected sentence: Mitch told her she deserved it and smiled as he walked away.

The maid thanks Mitch >Causes/Enables> Mitch smiles