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: Iran rejects order by UN energy agency to halt nuclear program TEHRAN Iran on Sunday rejected an order by the International Atomic Energy Agency to freeze its nuclear enrichment programs and warned that it would drop out of the Nuclear Nonproliferation Treaty if its case was sent to the United Nations Security Council 
