question: Was M2 executive produced by M3 , M4 , M5 , M6 , M7 , and M8 and edited by a British person
query: SELECT count(*) WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:people.person.nationality ns:m.07ssc .
  M2 ns:film.film.edited_by ?x0 .
  M2 ns:film.film.executive_produced_by M3 .
  M2 ns:film.film.executive_produced_by M4 .
  M2 ns:film.film.executive_produced_by M5 .
  M2 ns:film.film.executive_produced_by M6 .
  M2 ns:film.film.executive_produced_by M7 .
  M2 ns:film.film.executive_produced_by M8
  }