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: I love to knit in my spare time as I find it relaxing. I have many friends that are having babies and I need to get gifts. I found out that I can knit baby blankets fairly quickly. So I went to the store and bought a bunch of yarn. Now I am busy making baby blankets that are a perfect gift.
 selected sentence: So I went to the store and bought a bunch of yarn.

I leave home >Causes/Enables> I go to the store