[SQL][HackerRank] Weather Observation Station 6

https://www.hackerrank.com/challenges/weather-observation-station-6/problem?h_r=next-challenge&h_v=zen&h_r=next-challenge&h_v=zen&h_r=next-challenge&h_v=zen

Weather Observation Station 6 | HackerRank

select DISTINCT CITY 
FROM STATION
where LEFT(CITY,1) in ('a', 'e', 'i', 'o', 'u');