Were M2 and M3 executive produced by a director , producer , and star of M0 and written by a film editor
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film M0 .
?x0 ns:film.director.film M0 .
?x0 ns:film.producer.film|ns:film.production_company.films M0 .
?x1 a ns:film.editor .
M2 ns:film.film.executive_produced_by ?x0 .
M2 ns:film.film.written_by ?x1 .
M3 ns:film.film.executive_produced_by ?x0 .
M3 ns:film.film.written_by ?x1
}