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: Iran #39;s Revolutionary Guards getting a bigger appetite They are the shock troops of Iran #39;s Islamic Revolution - the men who helped seize the US embassy a generation ago and bore the brunt of their country #39;s eight-year war with Iraq.
