What company was acquired by M1 and was acquired by a producer of M2 and M3
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:business.employer .
?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x1 .
?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M1 .
?x1 ns:film.producer.film|ns:film.production_company.films M2 .
?x1 ns:film.producer.film|ns:film.production_company.films M3
}