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: Russia probes 2 deadly air crashes MOSCOW -- Investigators searched through heaps of mangled bodies and metal strewn over dozens of miles of fields and birch groves in two Russian regions yesterday to try to determine why two passenger jets crashed almost simultaneously.
