question: Were M1 and M5 founded by M2 , M3 , and M4 and founded by a executive producer of a prequel of a film
query: SELECT count(*) WHERE {
  ?x0 ns:film.producer.films_executive_produced ?x1 .
  ?x1 ns:film.film.sequel ?x2 .
  ?x2 a ns:film.film .
  M1 ns:organization.organization.founders ?x0 .
  M1 ns:organization.organization.founders M2 .
  M1 ns:organization.organization.founders M3 .
  M1 ns:organization.organization.founders M4 .
  M5 ns:organization.organization.founders ?x0 .
  M5 ns:organization.organization.founders M2 .
  M5 ns:organization.organization.founders M3 .
  M5 ns:organization.organization.founders M4
  }