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: Policeman Killed as Nepal Siege Grips Capital (Reuters) Reuters - Suspected insurgents shot dead a\policeman in Nepal's capital on Saturday as the military said\it could escort food shipments into the city to ease a\rebel-inspired blockade.

World