Who founded M1 , founded a film producer , and founded a film distributor
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:organization.organization_founder.organizations_founded ?x1 .
?x0 ns:organization.organization_founder.organizations_founded ?x2 .
?x0 ns:organization.organization_founder.organizations_founded M1 .
?x1 a ns:film.film_distributor .
?x2 a ns:film.producer
}