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: Four Killed as Bombs Rip Through Buses A passenger bus and another carrying paramilitary soldiers and their families were blown up in separate explosions in northeastern Indias insurgency-wracked Assam state today, killing four people and wounding 39 others, officials said.
