Was M1 founded by M2 , founded by M0 's star , founded by M3 , and founded by M4
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film M0 .
M1 ns:organization.organization.founders ?x0 .
M1 ns:organization.organization.founders M2 .
M1 ns:organization.organization.founders M3 .
M1 ns:organization.organization.founders M4
}