CREATE TABLE table_29686983_1 (circuit VARCHAR2, fastest_lap VARCHAR2, winning_rider VARCHAR2)

what is the circuit where the fastest lap is sam lowes and the winning rider is luca scassa?
SELECT circuit FROM table_29686983_1 WHERE fastest_lap = "Sam Lowes" AND winning_rider = "Luca Scassa"
SELECT "circuit" FROM "table_29686983_1" WHERE "Luca Scassa" = "winning_rider" AND "Sam Lowes" = "fastest_lap"