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: 25 nations sign first constitution for EU In a splendorous ceremony atop a hill that was once the center of the Roman empire, 25 European heads of government signed the European Union #39;s first constitution Friday, but for 
