Which province has a density of 971.4?
CREATE TABLE "population_area_and_density_sortable_on_" (
  "province" text,
  "population_2004_estimate" real,
  "area_km" real,
  "density" text,
  "gdp_2003_pps_in_mil" real,
  "gdp_per_cap_2003_in" real
);
SELECT "province" FROM "population_area_and_density_sortable_on_" WHERE "density"='971.4';