CREATE TABLE table_16661 ("Round" FLOAT, "Grand Prix" TEXT, "Date" TEXT, "Location" TEXT, "Pole Position" TEXT, "Fastest Lap" TEXT, "Winning Driver" TEXT, "Winning Constructor" TEXT, "Report" TEXT)

what are all the pole position where date is 26 july
SELECT "Pole Position" FROM table_16661 WHERE "Date" = '26 July'
SELECT "Pole Position" FROM "table_16661" WHERE "Date" = '26 July'