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: Argentina's Women Sail Into Hockey Semi-Finals  ATHENS (Reuters) - Top-ranked Argentina booked their berth  in the women's hockey semi-finals at the Athens Olympics on  Friday but defending champions Australia now face an obstacle  course to qualify for the medal matches.

Sports