question: Was a employer of M0 a Dutch screenwriter 's employer
query: SELECT count(*) WHERE {
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person M0 .
  ?x1 a ns:film.writer .
  ?x1 ns:people.person.nationality ns:m.059j2
  }