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: Greenspan Warns on Baby Boomer Benefits Federal Reserve Chairman Alan Greenspan said Friday that the country will face  quot;abrupt and painful quot; choices if Congress does not move quickly to trim the Social Security and Medicare benefits that have been promised to the baby boom generation.
