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: Labor Party faces vexing challenges The ruling Labor Party opened its annual meeting yesterday with elections looming next year, the opposition gaining favor in polls and Prime Minister Tony Blair eager to head off a rebuke over Iraq from his party #39;s left wing.

World