question: Was a art director whose country of nationality employed M2 a cinematographer
query: SELECT count(*) WHERE {
  ?x0 a ns:film.cinematographer .
  ?x0 a ns:film.film_art_director .
  ?x0 ns:people.person.nationality ?x1 .
  ?x1 ns:business.employer.employees/ns:business.employment_tenure.person M2
  }