Definition: In this task, you're given a short article. Your job is to classify the article based on its category. Use the following classification labels, 0. World, 1. Sports, 2. Business, 3. Science or Technical. Label the text "0" if it contains information related to world. Label the text "1" if it contains information related to sports. Label the text "2" if it contains information related business. Label the text "3" if it contains science or technical related information. 
Input: Mars Rover Finds Mysterious Rocks and More Signs of Water ith one Mars rover climbing into the hills and the other descending deep into a crater, scientists yesterday reported the discovery of several mysterious rock structures along with yet more signs that Mars was once awash in water. 
