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 went to the dirt bike track one day. I bought a trailer and a four wheeler. I unloaded the four wheeler and put on my helmet. I rode through the track and had fun. I went back to the trailer and went back home.
 selected sentence: I went to the dirt bike track one day.

I bought a trailer and a four wheeler >Causes/Enables> I went to the dirt bike track one day 