question: Did a employee of M0 and M1 found a film producer , found M2 and M3 , and found M4
query: SELECT count(*) WHERE {
  ?x0 ns:organization.organization_founder.organizations_founded ?x1 .
  ?x0 ns:organization.organization_founder.organizations_founded M2 .
  ?x0 ns:organization.organization_founder.organizations_founded M3 .
  ?x0 ns:organization.organization_founder.organizations_founded M4 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
  ?x1 a ns:film.producer
  }