Was a screenwriter whose employer was acquired by M0 and was acquired by M1 M2
SELECT count(*) WHERE {
?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M0 .
?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M1 .
M2 a ns:film.writer .
M2 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0
}