Did M4 employ a screenwriter that M2 and M3 influenced and employ a character
SELECT count(*) WHERE {
?x0 a ns:fictional_universe.fictional_character .
?x1 a ns:film.writer .
?x1 ns:influence.influence_node.influenced_by M2 .
?x1 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 ?x1
}