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: Dan was digging in his yard to put in an extension to his home. He wasn't very deep when his shovel thudded against Something hard. Suddenly a black stream spewed up into the air! Dan thought he'd struck oil! When he sniffed the air he realized he'd struck a sewage pipe.
 selected sentence: Suddenly a black stream spewed up into the air!

Dan's shovel thudded against Something hard >Causes/Enables> A black stream spewed into the air