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 was playing catch in the park. I dropped the ball. I went to go pick it up. I picked it up. I continued playing catch with my friend.
 selected sentence: I went to go pick it up.

I dropped a ball >Causes/Enables> I picked it up