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: CALIPH OF COLOGNE BACK IN TURKEY A leading Turkish militant known as the Caliph of Cologne has arrived in Istanbul after he was deported from Germany to face trial for allegedly attempting to overthrow Turkeys secular government.
