Were M1 and M7 directed by M4 , M5 , and M6 , written by M2 and M3 , and produced by a film director
SELECT count(*) WHERE {
?x0 a ns:film.director .
M1 ns:film.film.directed_by M4 .
M1 ns:film.film.directed_by M5 .
M1 ns:film.film.directed_by M6 .
M1 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M1 ns:film.film.written_by M2 .
M1 ns:film.film.written_by M3 .
M7 ns:film.film.directed_by M4 .
M7 ns:film.film.directed_by M5 .
M7 ns:film.film.directed_by M6 .
M7 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M7 ns:film.film.written_by M2 .
M7 ns:film.film.written_by M3
}