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: I had smoked for 3 years. I was tired of wasting my money. I was tired of coughing. I put out my last cigarette halfway though. I have not picked one up since.
 selected sentence: I was tired of wasting my money.

I have smoked for three years >Causes/Enables> I am tired of wasting my money