question: Was M2 influenced by M3 , influenced by M1 's writer and executive producer , and influenced by a screenwriter
query: SELECT count(*) WHERE {
  ?x0 a ns:film.writer .
  ?x1 ns:film.producer.films_executive_produced M1 .
  ?x1 ns:film.writer.film M1 .
  M2 ns:influence.influence_node.influenced_by ?x0 .
  M2 ns:influence.influence_node.influenced_by ?x1 .
  M2 ns:influence.influence_node.influenced_by M3
  }