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: Dilithium has 80 of 3G video telephony test market Dilithium Networks announced that NEC has purchased Dilithium Network Analyzer. Dilithium Networks estimates that 80 of 3G Mobile operators, network equipment vendors, and handset manufacturers use Dilithium 

Sci/Tech