Which film producer was founded by M1 , founded by M2 , founded by a film producer , and founded by M3 and M4
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.producer .
?x0 ns:organization.organization.founders ?x1 .
?x0 ns:organization.organization.founders M1 .
?x0 ns:organization.organization.founders M2 .
?x0 ns:organization.organization.founders M3 .
?x0 ns:organization.organization.founders M4 .
?x1 a ns:film.producer
}