question: Was M0 a film that starred M2 , M3 , M4 , and M5 and was edited by M6
query: SELECT count(*) WHERE {
  M0 a ns:film.film .
  M0 ns:film.film.edited_by M6 .
  M0 ns:film.film.starring/ns:film.performance.actor M2 .
  M0 ns:film.film.starring/ns:film.performance.actor M3 .
  M0 ns:film.film.starring/ns:film.performance.actor M4 .
  M0 ns:film.film.starring/ns:film.performance.actor M5
  }