Name the notes for samangan
CREATE TABLE "provinces_of_afghanistan" (
  "province" text,
  "map_num" real,
  "iso_3166_2_af" text,
  "centers" text,
  "population" real,
  "area_km" real,
  "language" text,
  "notes" text,
  "u_n_region" text
);
SELECT "notes" FROM "provinces_of_afghanistan" WHERE "province"='Samangan';