question: Was M0 a company that M2 , M3 , and M4 founded and M5 , M6 , M7 , and M8 were employed by
query: SELECT count(*) WHERE {
  M0 a ns:business.employer .
  M0 ns:business.employer.employees/ns:business.employment_tenure.person M5 .
  M0 ns:business.employer.employees/ns:business.employment_tenure.person M6 .
  M0 ns:business.employer.employees/ns:business.employment_tenure.person M7 .
  M0 ns:business.employer.employees/ns:business.employment_tenure.person M8 .
  M0 ns:organization.organization.founders M2 .
  M0 ns:organization.organization.founders M3 .
  M0 ns:organization.organization.founders M4
  }