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: Tom was new to construction work. On his first day he didn't know how to pour the cement. The boss yelled at Tom for messing up. The crew couldn't fix it and left it for a day. Later that day, a car hit the bad cement and crashed.
 selected sentence: On his first day he didn't know how to pour the cement.

Tom goes to work >Causes/Enables> Tom is at work