Name the total number of ranks for kujalleq with former name of brattahlíð and population less than 47
CREATE TABLE "settlements_with_population_below_100" (
  "rank" real,
  "population" real,
  "name" text,
  "former_name" text,
  "municipality" text
);
SELECT COUNT("rank") FROM "settlements_with_population_below_100" WHERE "municipality"='kujalleq' AND "former_name"='brattahlíð' AND "population"<47;