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 has worn the same pair of boots for almost 20 Years. The boots are now completely worn out. Finally his friends convince him to buy a new pair. Dan buys a new pair of boots that looks the same as his old ones. He hopes that his new boots also last 20 Years.
 selected sentence: Finally his friends convince him to buy a new pair.

Dan wears his boots for 20 years >Causes/Enables> He buys new boots