question: Were M2 and M5 founded by M3 and M4 , founded by a actor , and founded by a film 's writer
query: SELECT count(*) WHERE {
  ?x0 a ns:film.actor .
  ?x1 ns:film.writer.film ?x2 .
  ?x2 a ns:film.film .
  M2 ns:organization.organization.founders ?x0 .
  M2 ns:organization.organization.founders ?x1 .
  M2 ns:organization.organization.founders M3 .
  M2 ns:organization.organization.founders M4 .
  M5 ns:organization.organization.founders ?x0 .
  M5 ns:organization.organization.founders ?x1 .
  M5 ns:organization.organization.founders M3 .
  M5 ns:organization.organization.founders M4
  }