question: Were M2 and M6 founded by M3 , founded by M4 and M5 , and founded by M0 's British founder
query: SELECT count(*) WHERE {
  ?x0 ns:organization.organization_founder.organizations_founded M0 .
  ?x0 ns:people.person.nationality ns:m.07ssc .
  M2 ns:organization.organization.founders ?x0 .
  M2 ns:organization.organization.founders M3 .
  M2 ns:organization.organization.founders M4 .
  M2 ns:organization.organization.founders M5 .
  M6 ns:organization.organization.founders ?x0 .
  M6 ns:organization.organization.founders M3 .
  M6 ns:organization.organization.founders M4 .
  M6 ns:organization.organization.founders M5
  }