Were M1 and M7 written by M2 , M3 , and M4 , edited by a person , and directed by M5 and M6
SELECT count(*) WHERE {
?x0 a ns:people.person .
M1 ns:film.film.directed_by M5 .
M1 ns:film.film.directed_by M6 .
M1 ns:film.film.edited_by ?x0 .
M1 ns:film.film.written_by M2 .
M1 ns:film.film.written_by M3 .
M1 ns:film.film.written_by M4 .
M7 ns:film.film.directed_by M5 .
M7 ns:film.film.directed_by M6 .
M7 ns:film.film.edited_by ?x0 .
M7 ns:film.film.written_by M2 .
M7 ns:film.film.written_by M3 .
M7 ns:film.film.written_by M4
}