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