question: Did a person write a film , executive produce M1 , M2 , and M3 , and executive produce M4 and M5
query: SELECT count(*) WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:film.producer.films_executive_produced M1 .
  ?x0 ns:film.producer.films_executive_produced M2 .
  ?x0 ns:film.producer.films_executive_produced M3 .
  ?x0 ns:film.producer.films_executive_produced M4 .
  ?x0 ns:film.producer.films_executive_produced M5 .
  ?x0 ns:film.writer.film ?x1 .
  ?x1 a ns:film.film
  }