Which production company whose employee edited M2 and M3 and edited M4 did M1 found
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.production_company .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x0 ns:organization.organization.founders M1 .
?x1 ns:film.editor.film M2 .
?x1 ns:film.editor.film M3 .
?x1 ns:film.editor.film M4
}