What film editor was employed by M1 , founded M2 , founded M3 , and was employed by M4 's producer
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.editor .
?x0 ns:organization.organization_founder.organizations_founded M2 .
?x0 ns:organization.organization_founder.organizations_founded M3 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
?x1 ns:film.producer.film|ns:film.production_company.films M4
}