question: Was M0 a actor that M2 , M3 , M4 , M5 , M6 , M7 , and M8 were directed by
query: SELECT count(*) WHERE {
  M0 a ns:film.actor .
  M0 ns:film.director.film M2 .
  M0 ns:film.director.film M3 .
  M0 ns:film.director.film M4 .
  M0 ns:film.director.film M5 .
  M0 ns:film.director.film M6 .
  M0 ns:film.director.film M7 .
  M0 ns:film.director.film M8
  }