What country was the woman from who was born 1976-07-23 and became a grandmaster in 1991?
CREATE TABLE "grandmasters" (
  "name" text,
  "country" text,
  "birth_date" text,
  "date" real,
  "earned" text,
  "peak_rating_nov_2012" real
);
SELECT "country" FROM "grandmasters" WHERE "date"=1991 AND "birth_date"='1976-07-23';