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: 40 killed in clashes in Iraq #39;s Sadr city BAGHDAD (AFP) Forty people were killed and scores wounded in clashes between US forces and Shiite fighters in the Baghdad district of Sadr City overnight, the health ministry said.

World