CREATE TABLE table_50896 ("Race Title" CLOB, "Circuit" CLOB, "City / State" CLOB, "Date" CLOB, "Winner" CLOB, "Team" CLOB)

Which city or state contains Calder Park Raceway?
SELECT "City / State" FROM table_50896 WHERE "Circuit" = 'calder park raceway'
SELECT "City / State" FROM "table_50896" WHERE "Circuit" = 'calder park raceway'