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: Iran Denounces U.N. Demands As 'Illegal' TEHRAN, Iran - Iran on Sunday denounced as "illegal" demands from the U.N. atomic watchdog agency that it freeze all work on uranium enrichment - technology that can be used for nuclear weapons...

World