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: Calgary police charge man with series of vicious rapes from 1988-92 (Canadian Press) Canadian Press - CALGARY (CP) - More than 12 years after a serial rapist terrorized a quiet southwest Calgary neighbourhood, police say advances in DNA technology have led to the arrest of a 61-year-old man who was a suspect all along.

World