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: Kerry Will Begin Ad Blitz in Seven States (AP) AP - John Kerry will begin his post-Labor Day advertising blitz in seven states from New Hampshire to New Mexico, his political Ground Zero for a  #36;50 million campaign scheduled to expand into another 13 states by Nov. 2.

World