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: Ida was at a family picnic at the park. A bee approached her and she shooed it away. It grew angry and stung her on the hand! Ida's hand swelled up right away and became painfully sore. Ida had discovered that she was allergic to bees.
 selected sentence: Ida had discovered that she was allergic to bees.

A bee stings Ida >Causes/Enables> Ida discovers she is allergic to bees