question: Was M0 's Chinese writer M3 's Canadian producer
query: SELECT count(*) WHERE {
  ?x0 ns:film.producer.film|ns:film.production_company.films M3 .
  ?x0 ns:film.writer.film M0 .
  ?x0 ns:people.person.nationality ns:m.0d05w3 .
  ?x0 ns:people.person.nationality ns:m.0d060g
  }