CREATE TABLE table_74933 ("Circuit" CLOB, "Date" CLOB, "Pole position" CLOB, "Fastest Lap" CLOB, "Winning driver" CLOB, "Winning team" CLOB, "Winning manufacturer" CLOB)

What is the fastest lap of the Oschersleben circuit with Audi Sport Team ABT as the winning team?
SELECT "Fastest Lap" FROM table_74933 WHERE "Winning team" = 'audi sport team abt' AND "Circuit" = 'oschersleben'
SELECT "Fastest Lap" FROM "table_74933" WHERE "Circuit" = 'oschersleben' AND "Winning team" = 'audi sport team abt'