When stuttgart is the town what is the type?
CREATE TABLE "wta_tour" (
  "week" real,
  "start_date" text,
  "type" text,
  "tournament" text,
  "surface" text,
  "town" text,
  "country" text,
  "continent" text,
  "prize_money" text
);
SELECT "type" FROM "wta_tour" WHERE "town"='Stuttgart';