Teacher:In this task, you're given a short article. Your job is to classify the article based on its category. Use the following classification labels, 0. World, 1. Sports, 2. Business, 3. Science or Technical. Label the text "0" if it contains information related to world. Label the text "1" if it contains information related to sports. Label the text "2" if it contains information related business. Label the text "3" if it contains science or technical related information. 
Teacher: Now, understand the problem? Solve this instance: Bill Gates to Upgrade Fun In a revelation that should give late-night comedians two or three days #39; worth of snark fodder, the headlines this morning startled us with the news that the world #39;s 
Student:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
2