question: Was a Italian male film producer 's employer M3
query: SELECT count(*) WHERE {
  ?x0 a ns:film.producer .
  ?x0 ns:people.person.gender ns:m.05zppz .
  ?x0 ns:people.person.nationality ns:m.03rjj .
  M3 ns:business.employer.employees/ns:business.employment_tenure.person ?x0
  }