Were M4 and M5 founded by a film director whose employer was founded by M1 and M2 and was founded by M3
SELECT count(*) WHERE {
?x0 a ns:film.director .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x1 ns:organization.organization.founders M1 .
?x1 ns:organization.organization.founders M2 .
?x1 ns:organization.organization.founders M3 .
M4 ns:organization.organization.founders ?x0 .
M5 ns:organization.organization.founders ?x0
}