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: Today I have been working on the alphabet with my son. He has learned the first three letters. Today we are working on the fourth and fifth letters. He has been a little frustrated, but he keep on trying. By the end of the day he had learned the new letters.
 selected sentence: Today I have been working on the alphabet with my son.

I decide to work >Causes/Enables> I work