CREATE TABLE table_name_89 (altitude__mslm_ INTEGER, density__inhabitants_km_2__ VARCHAR(255), common_of VARCHAR(255))
Which Altitude (mslm) has a Density (inhabitants/km 2) smaller than 1467.5, and a Common of moncalieri?
    
SQL: SELECT SUM(altitude__mslm_) FROM table_name_89 WHERE density__inhabitants_km_2__ < 1467.5 AND common_of = "moncalieri"