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: Yahoo buys e-mail search firm SAN FRANCISCO: Internet media and Web search company Yahoo Inc. said that it bought privately held e-mail search company Stata Labs, jumping into the nascent market for search-based email programs and services.

Sci/Tech