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: Argentine Teen Kills Four in School Shooting  BUENOS AIRES, Argentina (Reuters) - A 15-year-old Argentine  killed four fellow students and wounded six on Tuesday in a  school shooting that shocked Argentines unaccustomed to such  violence.
