question: Was M2 produced by a Italian film editor , written by M3 , and written by M4 , M5 , and M6
query: SELECT count(*) WHERE {
  ?x0 a ns:film.editor .
  ?x0 ns:people.person.nationality ns:m.03rjj .
  M2 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
  M2 ns:film.film.written_by M3 .
  M2 ns:film.film.written_by M4 .
  M2 ns:film.film.written_by M5 .
  M2 ns:film.film.written_by M6
  }