Was a film producer that M3 influenced and M1 was influenced by M2 's executive producer
SELECT count(*) WHERE {
?x0 a ns:film.producer .
?x0 ns:film.producer.films_executive_produced M2 .
?x0 ns:influence.influence_node.influenced M1 .
?x0 ns:influence.influence_node.influenced_by M3
}