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: 2 Ecologists Near End of West Coast Hike (AP) AP - Forget a Global Positioning System or even a map. The Earth's own original satellite is the most important guide for two hikers making the first known continuous trek of the nation's western coastline.

Sci/Tech