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: Safin plays injured Canas next PARIS -- Marat Safin hit 10 aces and beat Lleyton Hewitt 6-4, 7-6 (2) Friday in a showdown between US Open champions to reach the Paris Masters semifinals.
