CREATE TABLE table_name_76 (opened NUMBER, themed_area VARCHAR2, manufacturer VARCHAR2)

Which Opened is the highest one that has a Themed Area of aerial park, and a Manufacturer of zamperla?
SELECT MAX(opened) FROM table_name_76 WHERE themed_area = "aerial park" AND manufacturer = "zamperla"
SELECT MAX("opened") FROM "table_name_76" WHERE "aerial park" = "themed_area" AND "manufacturer" = "zamperla"