question: Was M2 a production company whose Chinese employee played M1
query: SELECT count(*) WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.character M1 .
  ?x0 ns:people.person.nationality ns:m.0d05w3 .
  M2 a ns:film.production_company .
  M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x0
  }