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: Micah was at work. His bike was chained up out back. When he went to ride his bike home, it was gone. He checked the tapes and saw that it had been stolen. He was never able to find it.
 selected sentence: Micah was at work.

Michah left before work >Causes/Enables> Micah was at work