text: -- Github    : https://github.com/adarsh2104
  -- HR-Profile: https://www.hackerrank.com/adarsh_2104
  -- Challenge : https://www.hackerrank.com/challenges/weather-observation-station-9
  -- Max Score : 10
  
   
  SELECT CITY FROM STATION 
  WHERE 
         CITY NOT REGEXP '^[aeiou]' 
  GROUP BY CITY ; 
  