Question: What is the elevation of the city with a number of 91,385 Housing dwellings in 2007?
SQL: SELECT "Elevation msl" FROM "2-10877159-1" WHERE "Housing (2007)" = '91,385';

Question: What is the density of San Sebastián?
SQL: SELECT "Density (hab/km²)" FROM "2-10877159-1" WHERE "City district" = 'San Sebastián';

Question: What is the density of the city with an elevation of 3,400 msl?
SQL: SELECT "Density (hab/km²)" FROM "2-10877159-1" WHERE "Elevation msl" = '3,400 msl';

Question: What is the area of the city with a density of 8,546.1?
SQL: SELECT "Area km²" FROM "2-10877159-1" WHERE "Density (hab/km²)" = '8,546.1';

Question: What is the area of the city with a density of 955.6?
SQL: SELECT "Area km²" FROM "2-10877159-1" WHERE "Density (hab/km²)" = '955.6';