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: Pilots reach agreement United Airlines, seeking to emerge from Chapter 11 bankruptcy protection, yesterday said it has reached a tentative agreement with its pilots - the first of four major unions to settle with the nation #39;s second-largest carrier.
