Was M1 produced by M2 and M3 , edited by a company 's employee and founder , and edited by M4
SELECT count(*) WHERE {
?x0 ns:organization.organization_founder.organizations_founded ?x1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x1 a ns:business.employer .
M1 ns:film.film.edited_by ?x0 .
M1 ns:film.film.edited_by M4 .
M1 ns:film.film.produced_by|ns:film.film.production_companies M2 .
M1 ns:film.film.produced_by|ns:film.film.production_companies M3
}