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: Billy liked a pair of shoes at the shop. He didn't have any money to buy them. He had to figure out how to get some money and quickly. It was summer so he decided to mow lawns everyday after school. By the end of the week Billy was able to buy the shoes.
 selected sentence: It was summer so he decided to mow lawns everyday after school.

Billy needs money for new shoes >Causes/Enables> Billy mows lawns after school