question: Was a person that M2 , M3 , M4 , and M5 were founded by and M6 and M7 were founded by M0
query: SELECT count(*) WHERE {
  M0 a ns:people.person .
  M0 ns:organization.organization_founder.organizations_founded M2 .
  M0 ns:organization.organization_founder.organizations_founded M3 .
  M0 ns:organization.organization_founder.organizations_founded M4 .
  M0 ns:organization.organization_founder.organizations_founded M5 .
  M0 ns:organization.organization_founder.organizations_founded M6 .
  M0 ns:organization.organization_founder.organizations_founded M7
  }