Was a company founded by M1 , founded by M2 , founded by M3 , and founded by a film director
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 a ns:film.director
}