Question: Who was the LMP2 winner when the LMP1 winning team was No. 20 Oryx Dyson Racing?
Schema: create table table_27743641_2 (lmp2_winning_driver varchar, lmp1_winning_team varchar, PRIMARY KEY (lmp2_winning_driver))
SQL: select lmp2_winning_driver from table_27743641_2 where lmp1_winning_team = "no. 20 oryx dyson racing"