question: Was M1 's sequel 's star and writer a cinematographer
query: SELECT count(*) WHERE {
  ?x0 a ns:film.cinematographer .
  ?x0 ns:film.actor.film/ns:film.performance.film ?x1 .
  ?x0 ns:film.writer.film ?x1 .
  ?x1 ns:film.film.prequel M1
  }