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].

[EX Q]: New Microsoft search engine opens war for Internet dominance WASHINGTON (US): Microsoft #39;s new search engine launched Thursday opens a new front for the world #39;s biggest software company in a new war -- for control of the Internet, analysts said.
[EX A]: Sci/Tech

[EX Q]: I.B.M.'s 3rd-Quarter Profit Beats Analysts' Predictions I.B.M. delivered a solid quarterly performance that pointed to modest if uneven improvement in the corporate technology sector.
[EX A]: Sci/Tech

[EX Q]: Singh Wins PGA Championship in Playoff (AP) AP - The only birdie Vijay Singh made all day was the only one that mattered. All but counted out of the PGA Championship with a putter that failed him, Singh took advantage of a late collapse by Justin Leonard to get into a three-way playoff Sunday at Whistling Straits, then made the only birdie over the three extra holes to win the final major of the year.
[EX A]:
Sports

