Who were the GT winning team when the results were "report"?
CREATE TABLE "table1_27743641_2" (
  "season" real,
  "lmp1_winning_team" text,
  "lmp2_winning_driver" text,
  "lmpc_winning_team" text,
  "gt_winning_team" text,
  "gtc_winning_team" text,
  "results" text
);
SELECT "gt_winning_team" FROM "table1_27743641_2" WHERE "results"='Report';