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: Top Court Upholds Do-Not-Call Registry The US Supreme Court on Monday let stand a lower-court ruling that telemarketers #39; rights to free speech are not violated by the government #39;s nationwide do-not-call list.
