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: Karzai #39;s amnesty offer to Taliban All facts,challenges and problems considered, and there are many (from the security issue to the mobilization of a brand new free nations with very little if at all infrastructure and functioning civil society to ethnic, economical and political factor 

World