question: Were M2 and M6 executive produced by M0 's British executive producer and edited by M3 , M4 , and M5
query: SELECT count(*) WHERE {
  ?x0 ns:film.producer.films_executive_produced M0 .
  ?x0 ns:people.person.nationality ns:m.07ssc .
  M2 ns:film.film.edited_by M3 .
  M2 ns:film.film.edited_by M4 .
  M2 ns:film.film.edited_by M5 .
  M2 ns:film.film.executive_produced_by ?x0 .
  M6 ns:film.film.edited_by M3 .
  M6 ns:film.film.edited_by M4 .
  M6 ns:film.film.edited_by M5 .
  M6 ns:film.film.executive_produced_by ?x0
  }