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: Dementieva Advances to U.S. Open Semis NEW YORK - Elena Dementieva shook off a subpar serve that produced 15 double-faults, an aching left thigh and an upset stomach to advance to the semifinals at the U.S. Open with a 4-6, 6-4, 7-6 (1) victory Tuesday over Amelie Mauresmo...

World