Was M4 produced and edited by a Mexican person that M2 influenced and M1 was influenced by
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:influence.influence_node.influenced M1 .
?x0 ns:influence.influence_node.influenced_by M2 .
?x0 ns:people.person.nationality ns:m.0b90_r .
M4 ns:film.film.edited_by ?x0 .
M4 ns:film.film.produced_by|ns:film.film.production_companies ?x0
}