question: Did M3 's producer 's employer 's founder write M0 , M1 , and M2
query: SELECT count(*) WHERE {
  ?x0 ns:film.writer.film M0 .
  ?x0 ns:film.writer.film M1 .
  ?x0 ns:film.writer.film M2 .
  ?x0 ns:organization.organization_founder.organizations_founded ?x1 .
  ?x1 ns:business.employer.employees/ns:business.employment_tenure.person ?x2 .
  ?x2 ns:film.producer.film|ns:film.production_company.films M3
  }