question: Was M0 a British actor that M2 and M3 were executive produced and produced by
query: SELECT count(*) WHERE {
  M0 a ns:film.actor .
  M0 ns:film.producer.films_executive_produced M2 .
  M0 ns:film.producer.films_executive_produced M3 .
  M0 ns:film.producer.film|ns:film.production_company.films M2 .
  M0 ns:film.producer.film|ns:film.production_company.films M3 .
  M0 ns:people.person.nationality ns:m.07ssc
  }