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: Karl wanted to write his wife a quick note. He found a pen on his desk. He tried to write with it but the ink was dried out. He scribbled over and over but it wouldn't work. Karl gave up and used a crayon instead.
 selected sentence: He scribbled over and over but it wouldn't work.

Karl's pen won't work >Causes/Enables> Karl scribbles the pen over and over