CREATE TABLE table_name_70 (area_km_2 NUMBER, population_in_millions VARCHAR2, pop_density_people_km_2 VARCHAR2, member_state VARCHAR2)

What is the area km2 of the area with a pop density people/km2 larger than 91, is a member state of Italy, and had less than 58.8 population in millions?
SELECT SUM(area_km_2) FROM table_name_70 WHERE pop_density_people_km_2 > 91 AND member_state = "italy" AND population_in_millions < 58.8
SELECT SUM("area_km_2") FROM "table_name_70" WHERE "italy" = "member_state" AND "pop_density_people_km_2" > 91 AND "population_in_millions" < 58.8