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