TASK 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].
PROBLEM: Clinton jumps into campaign, as missing explosives force Bush on defensive (AFP) AFP - Democratic candidate John Kerry charged President George W. Bush with  quot;incredible incompetence quot; over the disappearance of powerful explosives in Iraq, while Bush accused his rival of offering a  quot;strategy of pessimism and retreat quot; in Iraq.

SOLUTION: World

PROBLEM: CA ex-CEO Kumar loses perks after indictment SAN FRANCISCO - Computer Associates International Inc. has revoked perks, including office space and home security services, that it handed out to former Chairman and Chief Executive Officer (CEO) Sanjay Kumar after he left the company last month.

SOLUTION: Sci/Tech

PROBLEM: Steelers stop streak by stunning New England The Steelers got a bucket full of treats yesterday, including turnovers, early points, a poised quarterback and a dominating defensive performance.

SOLUTION:
Sports

