Definition: 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. 
Input: Sales Up for Books on U.S. Electorate (AP) AP - President Bush's re-election disappointed many in the publishing industry, a blue-state business where liberals have long predominated, but it has boosted sales for a few anti-Bush books, notably Thomas Frank's "What's the Matter With Kansas?"
