question: Were M0 , M4 , M5 , and M6 founded by M1 , M2 , and M3
query: SELECT count(*) WHERE {
  M0 ns:organization.organization.founders M1 .
  M0 ns:organization.organization.founders M2 .
  M0 ns:organization.organization.founders M3 .
  M4 ns:organization.organization.founders M1 .
  M4 ns:organization.organization.founders M2 .
  M4 ns:organization.organization.founders M3 .
  M5 ns:organization.organization.founders M1 .
  M5 ns:organization.organization.founders M2 .
  M5 ns:organization.organization.founders M3 .
  M6 ns:organization.organization.founders M1 .
  M6 ns:organization.organization.founders M2 .
  M6 ns:organization.organization.founders M3
  }