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 smoked a lot of cigarettes. He often tried to smoke inside. One day he fell asleep with a lit cigarette in his hand. It fell and almost caused a fire. Tom still kept smoking, though.
 selected sentence: Tom smoked a lot of cigarettes.

Tom smokes cigarettes >Causes/Enables> Tom smokes a lot of cigarettes