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: My friend Patrick came to visit me this past weekend. I picked him up in Martinez and we drove back to Vallejo. We visited the coast, went to a bar and had a lot of fun. He went home on Sunday, and rode the Amtrak. I had a lot of fun with him. s.
 selected sentence: I picked him up in Martinez and we drove back to Vallejo.

My friend Patrick comes to visit me this past weekend >Causes/Enables> I pick him up in Martinez