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: Car Bombers Strike Near Green Zone, 7 Dead  BAGHDAD (Reuters) - Twin suicide car bombs blew up outside  a police station near Baghdad's Green Zone on Saturday, killing  seven people and wounding 57 in the latest deadly strike  against Iraq's shaky security forces.

World