question: Were M3 , M4 , M5 , and M6 written by M0 's director and produced by a British person
query: SELECT count(*) WHERE {
  ?x0 ns:film.director.film M0 .
  ?x1 a ns:people.person .
  ?x1 ns:people.person.nationality ns:m.07ssc .
  M3 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
  M3 ns:film.film.written_by ?x0 .
  M4 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
  M4 ns:film.film.written_by ?x0 .
  M5 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
  M5 ns:film.film.written_by ?x0 .
  M6 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
  M6 ns:film.film.written_by ?x0
  }