Quantos pontos tem um participante da Martini Racing, o motor de um Alfa Romeo flat-12 um chassi de Brabham BT45 e o ano de 1976?
CREATE TABLE table_name_43 (points VARCHAR, year VARCHAR, chassis VARCHAR, entrant VARCHAR, engine VARCHAR)
SELECT COUNT(points) FROM table_name_43 WHERE entrant = "martini racing" AND engine = "alfa romeo flat-12" AND chassis = "brabham bt45" AND year = 1976