question: Was a German producer of M1 and M2 employed by a film distributor
query: SELECT count(*) WHERE {
  ?x0 ns:film.producer.film|ns:film.production_company.films M1 .
  ?x0 ns:film.producer.film|ns:film.production_company.films M2 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
  ?x0 ns:people.person.nationality ns:m.0345h .
  ?x1 a ns:film.film_distributor
  }