Definition: In this task, you are given a news article. Your task is to classify the article to one out of the four topics 'World', 'Sports', 'Business', 'Sci/Tech' if the article's main topic is relevant to the world, sports, business, and science/technology, correspondingly. If you are not sure about the topic, choose the closest option. Note that URLs in the text have been replaced with [Link].
Input: UN, Blair Issue Warnings Over Violence in Sudan (Reuters) Reuters - British Prime Minister Tony Blair\warned Sudan on Wednesday violence must end in Darfur and the\United Nations said it might not be able to cope if conditions\there fail to improve.

World