question: Were M2 and M4 executive produced by a film producer that M1 was directed by and starred and written by M3
query: SELECT count(*) WHERE {
  ?x0 a ns:film.producer .
  ?x0 ns:film.actor.film/ns:film.performance.film M1 .
  ?x0 ns:film.director.film M1 .
  M2 ns:film.film.executive_produced_by ?x0 .
  M2 ns:film.film.written_by M3 .
  M4 ns:film.film.executive_produced_by ?x0 .
  M4 ns:film.film.written_by M3
  }