Was a writer and star of M0 influenced by M1 and influenced by M2 's star
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film M0 .
?x0 ns:film.writer.film M0 .
?x0 ns:influence.influence_node.influenced_by ?x1 .
?x0 ns:influence.influence_node.influenced_by M1 .
?x1 ns:film.actor.film/ns:film.performance.film M2
}