question: Was M2 executive produced by a screenwriter and produced by a film producer
query: SELECT count(*) WHERE {
  ?x0 a ns:film.writer .
  ?x1 a ns:film.producer .
  M2 ns:film.film.executive_produced_by ?x0 .
  M2 ns:film.film.produced_by|ns:film.film.production_companies ?x1
  }