question: Was M2 written by a film director that founded M1 and edited by M3 and M4
query: SELECT count(*) WHERE {
  ?x0 a ns:film.director .
  ?x0 ns:organization.organization_founder.organizations_founded M1 .
  M2 ns:film.film.edited_by M3 .
  M2 ns:film.film.edited_by M4 .
  M2 ns:film.film.written_by ?x0
  }