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: UPDATE 2-GE to buy water treatment company for \$1.1 billion General Electric Co. (GE.N: Quote, Profile, Research) will buy Ionics Inc. (ION.N: Quote, Profile, Research) for \$1.1 billion to build out its water treatment and services business 

Business