question: Was M1 directed by M6 and M7 , written by a film producer , and executive produced by M2 , M3 , M4 , and M5
query: SELECT count(*) WHERE {
  ?x0 a ns:film.producer .
  M1 ns:film.film.directed_by M6 .
  M1 ns:film.film.directed_by M7 .
  M1 ns:film.film.executive_produced_by M2 .
  M1 ns:film.film.executive_produced_by M3 .
  M1 ns:film.film.executive_produced_by M4 .
  M1 ns:film.film.executive_produced_by M5 .
  M1 ns:film.film.written_by ?x0
  }