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: Bush sharpens jabs against Kerry ahead of debates (AFP) AFP - President George W. Bush sharpened his jabs against Democratic challenger John Kerry, who has called for an end to the nasty advertising war that he said was scaring off voters only days before the rivals' first televised debate.

World