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: Microsoft Joins ISPs In Filing Anti-Spam Lawsuits Joining America Online, EarthLink and Yahoo against spamming, Microsoft Corp. today announced the filing of three new anti-Spam lawsuits under the CAN-SPAM federal law as part of its initiative in solving the Spam problem for Internet users worldwide.

Sci/Tech