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: David asked his father if they could drive to the toy store. While they were driving David counted his allowance. At the toy store, David ran over to the toy cars. He picked out a car that he could afford. David bought the car and took it home.
 selected sentence: While they were driving David counted his allowance.

David's father enters his car >Causes/Enables> David's father drives