Who was the LMP2 winner when the LMP1 winning team was No. 20 Oryx Dyson Racing?
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 "lmp2_winning_driver" FROM "table1_27743641_2" WHERE "lmp1_winning_team"='No. 20 Oryx Dyson Racing';