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: Sheila set of for the airport early so she could catch her flight. On the way her car had a burst tire. She had no idea how to change a tire and started to cry. A car pulled up behind and the driver greeted her by name. It turned out to be Someone she had worked with 10 years before.
 selected sentence: She had no idea how to change a tire and started to cry.

Sheila has a flat tire >Causes/Enables> Sheila cries