Which founder of M1 , M2 , M3 , and M4 executive produced M0
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.producer.films_executive_produced M0 .
?x0 ns:organization.organization_founder.organizations_founded M1 .
?x0 ns:organization.organization_founder.organizations_founded M2 .
?x0 ns:organization.organization_founder.organizations_founded M3 .
?x0 ns:organization.organization_founder.organizations_founded M4
}