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: Air NZ shares placed on trading halt ahead of High Court decision Shares in Air New Zealand were placed in a trading halt before NZX opened this morning. Air NZ requested its shares be placed on the halt ahead of a High Court announcement on the airline #39;s proposed tie-up with Qantas.
