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: Iran #39;s nuclear gamesmanship Having been duped last year by Iran, negotiators for France, Germany and Britain labored mightily over the past months to produce what they hoped would be an airtight agreement that would force Iran to abandon its nuclear ambitions.

World