Did M1 acquire M2 , acquire M3 and M4 , acquire M5 , and acquire a employer of M0
SELECT count(*) WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person M0 .
M1 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired ?x0 .
M1 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M2 .
M1 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M3 .
M1 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M4 .
M1 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M5
}