question: Who was the LMP2 winner when the LMP1 winning team was No. 20 Oryx Dyson Racing?
answer: SELECT lmp2_winning_driver FROM table_27743641_2 WHERE lmp1_winning_team = "No. 20 Oryx Dyson Racing"
context: CREATE TABLE table_27743641_2 (lmp2_winning_driver VARCHAR, lmp1_winning_team VARCHAR)