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: Hurt Leopold Off U.S. Team at World Cup (AP) AP - Jordan Leopold of the Calgary Flames pulled out of the World Cup on Wednesday because of a concussion, the third key defenseman lost by the defending champion United States.
