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: US Air Locked in Down-to-Wire Talks on Cuts With Its Pilots US Airways was locked in tough bargaining on wage and benefit cuts with its pilots union, whose backing is critical for the struggling airline to avoid another bankruptcy filing.
