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: Golf: Els Leads American Express Golf Championships World number three golfer Ernie Els of South Africa has a two-stroke lead over Denmark #39;s Thomas Bjorn after the third round of the American Express Golf Championships in Ireland.
