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: Bryan loved to play in the woods. He always dreamed of building a treehouse. One day his dad said they could build one. Bryan and his dad worked very hard on the tree house. He played in it every day after school.
 selected sentence: He always dreamed of building a treehouse.

Bryan plays outside >Causes/Enables> Bryan wants a treehouse