question: Was M3 written by M4 , M5 , and M6 and edited by a German female person
query: SELECT count(*) WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:people.person.gender ns:m.02zsn .
  ?x0 ns:people.person.nationality ns:m.0345h .
  M3 ns:film.film.edited_by ?x0 .
  M3 ns:film.film.written_by M4 .
  M3 ns:film.film.written_by M5 .
  M3 ns:film.film.written_by M6
  }