question: Were M3 , M5 , M6 , and M7 directed by a British American film director and executive produced by M4
query: SELECT count(*) WHERE {
  ?x0 a ns:film.director .
  ?x0 ns:people.person.nationality ns:m.07ssc .
  ?x0 ns:people.person.nationality ns:m.09c7w0 .
  M3 ns:film.film.directed_by ?x0 .
  M3 ns:film.film.executive_produced_by M4 .
  M5 ns:film.film.directed_by ?x0 .
  M5 ns:film.film.executive_produced_by M4 .
  M6 ns:film.film.directed_by ?x0 .
  M6 ns:film.film.executive_produced_by M4 .
  M7 ns:film.film.directed_by ?x0 .
  M7 ns:film.film.executive_produced_by M4
  }