Were M1 and M6 written by M2 , M3 , M4 , and M5 and executive produced by a film 's director
SELECT count(*) WHERE {
?x0 ns:film.director.film ?x1 .
?x1 a ns:film.film .
M1 ns:film.film.executive_produced_by ?x0 .
M1 ns:film.film.written_by M2 .
M1 ns:film.film.written_by M3 .
M1 ns:film.film.written_by M4 .
M1 ns:film.film.written_by M5 .
M6 ns:film.film.executive_produced_by ?x0 .
M6 ns:film.film.written_by M2 .
M6 ns:film.film.written_by M3 .
M6 ns:film.film.written_by M4 .
M6 ns:film.film.written_by M5
}