question: Were M1 , M5 , and M6 founded by M2 , founded by M3 and M4 , and founded by M0 's founder
query: SELECT count(*) WHERE {
  ?x0 ns:organization.organization_founder.organizations_founded M0 .
  M1 ns:organization.organization.founders ?x0 .
  M1 ns:organization.organization.founders M2 .
  M1 ns:organization.organization.founders M3 .
  M1 ns:organization.organization.founders M4 .
  M5 ns:organization.organization.founders ?x0 .
  M5 ns:organization.organization.founders M2 .
  M5 ns:organization.organization.founders M3 .
  M5 ns:organization.organization.founders M4 .
  M6 ns:organization.organization.founders ?x0 .
  M6 ns:organization.organization.founders M2 .
  M6 ns:organization.organization.founders M3 .
  M6 ns:organization.organization.founders M4
  }