question: Who founded a film producer , was employed by M1 , M2 , and M3 , and founded M4 and M5
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:organization.organization_founder.organizations_founded ?x1 .
  ?x0 ns:organization.organization_founder.organizations_founded M4 .
  ?x0 ns:organization.organization_founder.organizations_founded M5 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M2 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M3 .
  ?x1 a ns:film.producer
  }