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: Nigerian Oil Delta Rebel in 11th Hour Peace Talks  LAGOS (Reuters) - Nigerian rebel leader Mujahid  Dokubo-Asari said he arrived in the capital Abuja on Wednesday  for talks with President Olusegun Obasanjo after his group  threatened a new offensive against troops in the oil-producing  Niger delta and threatened to target oil workers.

World