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: Clashes break out in Najaf, but government says it hopes to &lt;b&gt;...&lt;/b&gt; By Abdul Hussein Al-Obeidi, Associated Press, 8/22/2004 15:32. NAJAF, Iraq (AP) Explosions and gunfire shook Najaf #39;s Old City on Sunday in a fierce battle between US forces and Shiite militants, as negotiations 

World