question: Was M1 a cinematographer that directed M3 and executive produced M0 's prequel
query: SELECT count(*) WHERE {
  ?x0 ns:film.film.sequel M0 .
  M1 a ns:film.cinematographer .
  M1 ns:film.director.film M3 .
  M1 ns:film.producer.films_executive_produced ?x0
  }