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: Google buys digital mapping company Search enabler Google Inc. said Wednesday it acquired digital mapping company Keyhole Corp. for an undisclosed sum. Keyhole maintains a multiterabyte database of digital images of geographic locations, culled from satellite and aerial snapshots.
