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: Russian jets #39; crashes still mysterious MOSCOW (CP) - Russia mourned 89 victims of a double air disaster today as debate intensified over whether the two passenger liners could have plunged almost simultaneously from the sky by accident.
