Were M5 and M6 edited by and written by a Japanese screenwriter that executive produced M1 , M2 , and M3
SELECT count(*) WHERE {
?x0 a ns:film.writer .
?x0 ns:film.producer.films_executive_produced M1 .
?x0 ns:film.producer.films_executive_produced M2 .
?x0 ns:film.producer.films_executive_produced M3 .
?x0 ns:people.person.nationality ns:m.03_3d .
M5 ns:film.film.edited_by ?x0 .
M5 ns:film.film.written_by ?x0 .
M6 ns:film.film.edited_by ?x0 .
M6 ns:film.film.written_by ?x0
}