Did M4 employ a film director influenced by M1 and influenced by M2 and M3 and employ M5
SELECT count(*) WHERE {
?x0 a ns:film.director .
?x0 ns:influence.influence_node.influenced_by M1 .
?x0 ns:influence.influence_node.influenced_by M2 .
?x0 ns:influence.influence_node.influenced_by M3 .
M4 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M4 ns:business.employer.employees/ns:business.employment_tenure.person M5
}