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: Susan thought about the weekend. She did not know what to do. She remembered that she hadn't seen her best friend in a long time. She called her up. Susan now had plans for the weekend.
 selected sentence: She called her up.

Susan hadn't seen her friend in a long time >Causes/Enables> Susan called her friend