Sentence 1: Dan has worn the same pair of boots for almost 20 Years. 
 Sentence 3: Finally his friends convince him to buy a new pair 
 Sentence 4:  Dan buys a new pair of boots that looks the same as his old ones 
 Sentence 5:  He hopes that his new boots also last 20 Years 
 Given Sentence 2: The boots are now completely worn out.