Was a actor whose employer acquired M0 , M1 , and M2 M3
SELECT count(*) WHERE {
?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M0 .
?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M1 .
?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M2 .
M3 a ns:film.actor .
M3 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0
}