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: Fed Chief Hints at More Interest Rate Rises Fed Chairman Alan Greenspan said today that economic expansion had "regained some traction," and suggested that the central bank would stick to its plan of gradually raising interest rates.

Business