question: Was M0 's director a actor of a character 's actor
query: SELECT count(*) WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.character ?x1 .
  ?x0 ns:film.director.film M0 .
  ?x1 ns:film.actor.film/ns:film.performance.character ?x2 .
  ?x2 a ns:fictional_universe.fictional_character
  }