Show the name for regions not affected.
SELECT region_name FROM region WHERE region_id NOT IN (SELECT region_id FROM affected_region)
SELECT region_name FROM region WHERE region_id NOT IN (SELECT region_id FROM affected_region)
[{'Region_name': 'American Samoa'}, {'Region_name': 'Andorra'}, {'Region_name': 'Angola'}, {'Region_name': 'Anguilla'}, {'Region_name': 'Antarctica'}, {'Region_name': 'Antigua and Barbuda'}, {'Region_name': 'Cyprus'}, {'Region_name': 'Czech Republic'}, {'Region_name': 'Djibouti'}]