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: UPDATE 1-Open-Serena surprised to be crowd favourite Former champion Serena Williams hammered Patty Schnyder 6-4 6-2 to reach the quarter-finals of the US Open on Sunday and then said she was surprised to have the crowd on her side.
