Was M2 written by M3 , written by M4 , and written by M1 's Spanish director
SELECT count(*) WHERE {
?x0 ns:film.director.film M1 .
?x0 ns:people.person.nationality ns:m.06mkj .
M2 ns:film.film.written_by ?x0 .
M2 ns:film.film.written_by M3 .
M2 ns:film.film.written_by M4
}