Was a company founded by a actor of M4 and founded by M1 , M2 , and M3
SELECT count(*) WHERE {
?x0 a ns:business.employer .
?x0 ns:organization.organization.founders ?x1 .
?x0 ns:organization.organization.founders M1 .
?x0 ns:organization.organization.founders M2 .
?x0 ns:organization.organization.founders M3 .
?x1 ns:film.actor.film/ns:film.performance.character M4
}