Did a star of M1 , M2 , M3 , M4 , M5 , and M6 direct , edit , and produce M0
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film M1 .
?x0 ns:film.actor.film/ns:film.performance.film M2 .
?x0 ns:film.actor.film/ns:film.performance.film M3 .
?x0 ns:film.actor.film/ns:film.performance.film M4 .
?x0 ns:film.actor.film/ns:film.performance.film M5 .
?x0 ns:film.actor.film/ns:film.performance.film M6 .
?x0 ns:film.director.film M0 .
?x0 ns:film.editor.film M0 .
?x0 ns:film.producer.film|ns:film.production_company.films M0
}