Were M2 and M4 produced by a Spanish writer of M1 's sequel and executive produced by M3
SELECT count(*) WHERE {
?x0 ns:film.writer.film ?x1 .
?x0 ns:people.person.nationality ns:m.06mkj .
?x1 ns:film.film.prequel M1 .
M2 ns:film.film.executive_produced_by M3 .
M2 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M4 ns:film.film.executive_produced_by M3 .
M4 ns:film.film.produced_by|ns:film.film.production_companies ?x0
}