Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_70 (area_km_2 INTEGER, population_in_millions VARCHAR, pop_density_people_km_2 VARCHAR, member_state VARCHAR)

### Question ###
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?

### Accurate SQL ###

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