question: Which Canadian film producer was a female film editor that M3 was produced by and M4 starred
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.editor .
  ?x0 a ns:film.producer .
  ?x0 ns:film.actor.film/ns:film.performance.film M4 .
  ?x0 ns:film.producer.film|ns:film.production_company.films M3 .
  ?x0 ns:people.person.gender ns:m.02zsn .
  ?x0 ns:people.person.nationality ns:m.0d060g
  }