What was the outcome of the Tournament of lugano , switzerland wta virginia slims, against bonnie gadusek?
CREATE TABLE "singles_37_19_18" (
  "outcome" text,
  "date" text,
  "tournament" text,
  "surface" text,
  "opponent_in_the_final" text,
  "score_in_the_final" text
);
SELECT "outcome" FROM "singles_37_19_18" WHERE "tournament"='lugano , switzerland wta virginia slims' AND "opponent_in_the_final"='bonnie gadusek';