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: Donald was drinking tea. It was out of a glass bottle. He dropped it by accident. It broke on the floor. Donald had to carefully clean up the glass.
 selected sentence: He dropped it by accident.

Donald holds a glass bottle >Causes/Enables> Donald drops the bottle