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