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: Darfur Increasingly Unstable, UN Envoy Warns The United Nations #39; special envoy to Sudan told the Security Council on Thursday that Darfur is sliding into anarchy as government and rebel forces battle over control of the territory.
