Who is the opponent in the final of the match on 19 February 2006?
CREATE TABLE "singles_12_3_9" (
  "outcome" text,
  "date" text,
  "tournament" text,
  "surface" text,
  "opponent_in_the_final" text,
  "score" text
);
SELECT "opponent_in_the_final" FROM "singles_12_3_9" WHERE "date"='19 february 2006';