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: Armed Group Seizes Russian School, Talks Start  MOSCOW (Reuters) - A heavily armed gang seized up to 400  hostages at a Russian school near Chechnya Wednesday and  threatened to shoot dead 50 children for any one of their  comrades killed, a senior local official said.

World