Were M2 , M4 , M5 , and M6 influenced by M3 and influenced by M0 's Mexican executive producer
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced M0 .
?x0 ns:people.person.nationality ns:m.0b90_r .
M2 ns:influence.influence_node.influenced_by ?x0 .
M2 ns:influence.influence_node.influenced_by M3 .
M4 ns:influence.influence_node.influenced_by ?x0 .
M4 ns:influence.influence_node.influenced_by M3 .
M5 ns:influence.influence_node.influenced_by ?x0 .
M5 ns:influence.influence_node.influenced_by M3 .
M6 ns:influence.influence_node.influenced_by ?x0 .
M6 ns:influence.influence_node.influenced_by M3
}