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: The thief told the cashier to give him all the money in the machine. As soon as he received it, the cops broke into the bank. He ran towards the back door since no one was there. Instead of chasing him, the cops tried to drive there. The thief eventually lost them.
 selected sentence: He ran towards the back door since no one was there.

The cops arrive at the bank >Causes/Enables> The thief runs toward the exit