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: North Korea Urges Refugees to Return to 'Warm Home'  SEOUL (Reuters) - North Korea appealed to refugees who have  sought asylum in the South to return to the impoverished state,  avoiding for once labeling them "human scum" and saying a warm  home awaits them.

World