Was M1 acquired by M0 's employer and acquired by M2 , M3 , M4 , M5 , and M6
SELECT count(*) WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person M0 .
M1 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x0 .
M1 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M2 .
M1 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M3 .
M1 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M4 .
M1 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M5 .
M1 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M6
}