question: Was a film that a company whose founder directed M1 wrote M2
query: SELECT count(*) WHERE {
  ?x0 a ns:business.employer .
  ?x0 ns:organization.organization.founders ?x1 .
  ?x1 ns:film.director.film M1 .
  M2 a ns:film.film .
  M2 ns:film.film.written_by ?x0
  }