Question: what is the gdp ( bn ) where Capital is Capital?
SQL: SELECT "GDP ( bn )" FROM "1-12108-1" WHERE "Capital" = 'Capital';

Question: what is the population where the Area (sq. mi.) is Area (sq. mi.)?
SQL: SELECT "Population" FROM "1-12108-1" WHERE "Area (sq. mi.)" = 'Area (sq. mi.)';