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: Sam has a cat she loves more than anything. She is going on vacation and has to leave her cat behind. She gets a cat sitter to watch her cat. When sam comes back from vacation her cat is gone. Sam's cat was stolen!
 selected sentence: When sam comes back from vacation her cat is gone.

Sam comes back from vacation >Causes/Enables> Her cat is gone