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