text: /*
  Enter your query here.
  Please append a semicolon ";" at the end of the query and enter your query in a single line to avoid error.
  */
  select distinct city 
  from station
  where city like '%a' or city like '%e' or city like '%i' or city like '%o' or city like '%u';
  
  /* Optimized solution using regexp */
  
  select distinct city 
  from station
  where city regexp '[aeiou]$';