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: Delta still not out of the woods in terms of avoiding bankruptcy Delta Air Lines Inc. has a tentative pilot deal on concessions and much-needed breathing room. But it has not detailed the progress of its key debt restructuring efforts.
