question: Was M1 produced by M2 and executive produced by a screenwriter 's actor
query: SELECT count(*) WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.character ?x1 .
  ?x1 a ns:film.writer .
  M1 ns:film.film.executive_produced_by ?x0 .
  M1 ns:film.film.produced_by|ns:film.film.production_companies M2
  }