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: Cause Sought for Fatal Ark. Tour Bus Crash WEST MEMPHIS, Ark. - Relatives of more than a dozen travelers who were hurt when their tour bus drifted off a highway kept vigil Sunday at hospitals while investigators sought a cause for the crash that killed 15 people...
