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: Martin is out climbing with his friends. He watches all of his friends climb to the top. He is the last one to start climbing. He starts to climb and right before he reaches the top. He slips and falls down off of the mountain.
 selected sentence: Martin is out climbing with his friends.

Martin decides to go out climbing >Causes/Enables> Martin is out climbing