question: Was M2 directed and executive produced by a art director whose employer employed M1
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film_art_director .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
  ?x1 ns:business.employer.employees/ns:business.employment_tenure.person M1 .
  M2 ns:film.film.directed_by ?x0 .
  M2 ns:film.film.executive_produced_by ?x0
  }