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: Astros discover killer instinct The Killer B's didn't have to go it alone. Roger Clemens and the powerful Houston lineup made sure the Astros got off to a good start in their quest to finally win a playoff series.
