CREATE TABLE table_4606 ("Team" CLOB, "Chassis" CLOB, "Engine" CLOB, "Tires" CLOB, "Drivers" CLOB)

What chassis did Gordon Johncock use with his cosworth engine?
SELECT "Chassis" FROM table_4606 WHERE "Engine" = 'cosworth' AND "Drivers" = 'gordon johncock'
SELECT "Chassis" FROM "table_4606" WHERE "Drivers" = 'gordon johncock' AND "Engine" = 'cosworth'