question: What company whose founder and employee founded M4 and M5 did M1 found and M2 and M3 found
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:business.employer .
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
  ?x0 ns:organization.organization.founders ?x1 .
  ?x0 ns:organization.organization.founders M1 .
  ?x0 ns:organization.organization.founders M2 .
  ?x0 ns:organization.organization.founders M3 .
  ?x1 ns:organization.organization_founder.organizations_founded M4 .
  ?x1 ns:organization.organization_founder.organizations_founded M5
  }