Did a company acquire M1 , acquire M2 and M3 , and acquire M4 , M5 , and M6
SELECT count(*) WHERE {
?x0 a ns:business.employer .
?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M1 .
?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M2 .
?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M3 .
?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M4 .
?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M5 .
?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M6
}