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 always wanted to swim with the dolphins. I saw dolphins when I was at Sea World with my family. I asked my mom if we could swim with them. She wouldn't let me because it cost too much money. I was disappointed that I couldn't swim with them that day.
 selected sentence: She wouldn't let me because it cost too much money.

I ask my mom if we could swim with dolphins >Causes/Enables> My mom wouldn't let me