question: Was M1 edited by M5 and M6 , executive produced by M2 , M3 , and M4 , and edited by a person
query: SELECT count(*) WHERE {
  ?x0 a ns:people.person .
  M1 ns:film.film.edited_by ?x0 .
  M1 ns:film.film.edited_by M5 .
  M1 ns:film.film.edited_by M6 .
  M1 ns:film.film.executive_produced_by M2 .
  M1 ns:film.film.executive_produced_by M3 .
  M1 ns:film.film.executive_produced_by M4
  }