Was M1 written by M2 , directed by a person , written by M3 , and written by M4 and M5
SELECT count(*) WHERE {
?x0 a ns:people.person .
M1 ns:film.film.directed_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
}