Who founded a production company whose founder edited M3 and M4 and founded M1
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:organization.organization_founder.organizations_founded ?x1 .
?x0 ns:organization.organization_founder.organizations_founded M1 .
?x1 a ns:film.production_company .
?x1 ns:organization.organization.founders ?x2 .
?x2 ns:film.editor.film M3 .
?x2 ns:film.editor.film M4
}