question: Did M7 produce and direct a film that M1 , M2 , M3 , M4 , M5 , and M6 executive produced
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film .
  ?x0 ns:film.film.executive_produced_by M1 .
  ?x0 ns:film.film.executive_produced_by M2 .
  ?x0 ns:film.film.executive_produced_by M3 .
  ?x0 ns:film.film.executive_produced_by M4 .
  ?x0 ns:film.film.executive_produced_by M5 .
  ?x0 ns:film.film.executive_produced_by M6 .
  M7 ns:film.director.film ?x0 .
  M7 ns:film.producer.film|ns:film.production_company.films ?x0
  }