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 was throwing a football. It ended up on the roof of the school. I asked my dad for a ladder. He said no. I gave up on getting it.
 selected sentence: He said no.

I ask my dad for a ladder >Causes/Enables> He says no