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: Bob loved to eat chocolate. One day Bob's body developed an allergy to chocolate. Bob didn't realize he couldn't eat it. Bob ate a large chocolate bar. Bob got very sick and had to go to the hospital.
 selected sentence: Bob got very sick and had to go to the hospital.

Bob eats chocolate >Causes/Enables> Bob gets sick