Which cities have regional population above 8000000 or below 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  >  10000000 UNION SELECT city FROM city WHERE regional_population  <  5000000
[{'City': 'Changzhou ( Jiangsu )'}, {'City': 'Jiaxing ( Zhejiang )'}, {'City': 'Jinhua ( Zhejiang )'}, {'City': 'Shanghai'}, {'City': 'Shaoxing ( Zhejiang )'}, {'City': 'Suzhou ( Jiangsu )'}, {'City': 'Yangzhou ( Jiangsu )'}]