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