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: Handset big five work together to drive mobile broadcast services Mobile handset manufacturers Motorola, NEC, Nokia, Siemens and Sony Ericsson have announced their co-operation in the Mobile Broadcast Services work, launched under the auspices of the sector trade association, the Open Mobile Alliance.

Sci/Tech