SQL query to check if a name begins and ends with a vowel

Question

I want to query the list of CITY names from the table STATION(id, city, longitude, latitude) which have vowels as both their first and last charact

Answer 1

select distinct(city) from STATION 
where lower(substr(city, -1)) in ('a','e','i','o','u') 
      and lower(substr(city, 1,1)) in ('a','e','i','o','u');