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
);

Question: Who wins the clive churchill medal when the losing team is the sydney roosters in 2010?
SQL: SELECT "clive_churchill_medal" FROM "1998_present_national_rugby_league" WHERE "losing_team"='sydney roosters' AND "season"=2010;

Question: What is the grand final date for the game with a score or 30-24?
SQL: SELECT "grand_final_date" FROM "1998_present_national_rugby_league" WHERE "score"='30-24';