Did M3 employ a person that was influenced by a cinematographer and influenced M1 and employ M4
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:influence.influence_node.influenced M1 .
?x0 ns:influence.influence_node.influenced_by ?x1 .
?x1 a ns:film.cinematographer .
M3 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M3 ns:business.employer.employees/ns:business.employment_tenure.person M4
}