Qual participante, com um motor Offenhauser L4 e um chassis Kurtis Kraft KK500A, marcou 9 pontos antes de 1955?
CREATE TABLE table_name_15 (entrant VARCHAR, points VARCHAR, chassis VARCHAR, engine VARCHAR, year VARCHAR)
SELECT entrant FROM table_name_15 WHERE engine = "offenhauser l4" AND year < 1955 AND chassis = "kurtis kraft kk500a" AND points = 9