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: Photos from MacExpo 2004 With over 100 exhibitors  #151; including Apple, Adobe, Bose, Epson, HP, Microsoft, Quark and Sony  #151; and more than 20,000 visitors expected during the three-day event  #151; this year #146;s London MacExpo is shaping up as the biggest and best ever staged. Nov 18

Sci/Tech