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: Suicide car bomber kills at least 13 in Baghdad BAGHDAD: A suicide car bomber killed at least 13 people in an attack on a police checkpoint in Baghdad last night, after US air strikes around rebel-held Falluja that killed scores.
