Was M2 written by a screenwriter , executive produced by a producer and director of M0 , and executive produced by M3
SELECT count(*) WHERE {
?x0 ns:film.director.film M0 .
?x0 ns:film.producer.film|ns:film.production_company.films M0 .
?x1 a ns:film.writer .
M2 ns:film.film.executive_produced_by ?x0 .
M2 ns:film.film.executive_produced_by M3 .
M2 ns:film.film.written_by ?x1
}