Was M0 a employer of M1 , M2 , M3 , M4 , and M5
SELECT count(*) WHERE {
M0 ns:business.employer.employees/ns:business.employment_tenure.person M1 .
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
}