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: Four Commit Suicide in Australia Child Porn Case (Reuters) Reuters - Four Australian men have committed\suicide after being caught up in an investigation into child\Internet pornography that has resulted in more than 200\arrested and charged for 2,000 offences, police said on\Saturday.

Sci/Tech