Brett kimmorley, who was chosen for the clive churchill medal belonged to what team?
CREATE TABLE "1998_present_national_rugby_league" (
  "season" real,
  "grand_final_date" text,
  "winning_team" text,
  "score" text,
  "losing_team" text,
  "location" text,
  "gf_attendance" real,
  "clive_churchill_medal" text
);
SELECT "winning_team" FROM "1998_present_national_rugby_league" WHERE "clive_churchill_medal"='Brett Kimmorley';