CREATE TABLE table_54767 ("Race" TEXT, "Circuit" TEXT, "Date" TEXT, "Pole position" TEXT, "Fastest lap" TEXT, "Winning driver" TEXT, "Constructor" TEXT, "Tyre" TEXT, "Report" TEXT)

What is the name of the circuit when Jack Brabham is in the pole position and Graham Hill has the fastest lap?
SELECT "Circuit" FROM table_54767 WHERE "Pole position" = 'jack brabham' AND "Fastest lap" = 'graham hill'
SELECT "Circuit" FROM "table_54767" WHERE "Fastest lap" = 'graham hill' AND "Pole position" = 'jack brabham'