question: Was M3 a production company whose employee and founder founded and was employed by M0 , M1 , and M2
query: SELECT count(*) WHERE {
  ?x0 ns:organization.organization_founder.organizations_founded M0 .
  ?x0 ns:organization.organization_founder.organizations_founded M1 .
  ?x0 ns:organization.organization_founder.organizations_founded M2 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M2 .
  M3 a ns:film.production_company .
  M3 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
  M3 ns:organization.organization.founders ?x0
  }