Were M2 and M4 influenced by M3 and influenced by a character that M1 was executive produced by
SELECT count(*) WHERE {
?x0 a ns:fictional_universe.fictional_character .
?x0 ns:film.producer.films_executive_produced M1 .
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
}