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: Brazil to Limit UN Access to Uranium Plant as Powell Visits Brazil will limit United Nations #39; access to a uranium enrichment plant as US Secretary of State Colin Powell visits the country to press for unimpeded inspections, the country #39;s ambassador in Washington said.

Sci/Tech