SELECT city FROM city WHERE regional_population  >  10000000 UNION SELECT city FROM city WHERE regional_population  <  5000000
Please give me a list of cities whose regional population is over 8000000 or under 5000000.
SELECT city FROM city WHERE regional_population > 10000000 UNION SELECT city FROM city WHERE regional_population < 5000000
select city from city where regional_population > value union select city from city where regional_population < value
Please give me a list of cities whose regional population is over 8000000 or under 5000000 .