question: Was M3 written by M4 and executive produced by a film editor that M1 and M2 were influenced by
query: SELECT count(*) WHERE {
  ?x0 a ns:film.editor .
  ?x0 ns:influence.influence_node.influenced M1 .
  ?x0 ns:influence.influence_node.influenced M2 .
  M3 ns:film.film.executive_produced_by ?x0 .
  M3 ns:film.film.written_by M4
  }