Table: east_asia_countries
Columns: country
area_km
population
population_density_per_km
hdi_2011
capital

Question: Which capitals have an area of exactly 377930 square km?
SQL: SELECT "capital" FROM east_asia_countries WHERE "area_km" = 377930

Question: What is the total number of capitals that have an area of exactly 1104 square km?
SQL: SELECT COUNT("capital") FROM east_asia_countries WHERE "area_km" = 1104

Question: What capital has a population of exactly 1339724852?
SQL: SELECT "capital" FROM east_asia_countries WHERE "population" = 1339724852

Question: How many populations have a capital of Hong Kong?
SQL: SELECT COUNT("population") FROM east_asia_countries WHERE "capital" = 'Hong Kong'