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: Boeing tanker backers hope to save deal Supporters of an Air Force plan to buy 100 aerial tankers from The Boeing Co. insisted yesterday they could salvage the troubled deal, even as Congress moved to kill it and federal investigators continue to 
