public String extractEntities(String type) {
        AnnotationSet all = document.getAnnotations();
        AnnotationSet Entity = all.get(type);
        OffsetComparator comp = new OffsetComparator();

        ArrayList<Annotation> ListEn = new ArrayList(Entity);
        Collections.sort(ListEn, comp);

        Annotation Ent;
        String StringEntity = "\n-------" + type + "---------\n";
        String WordEntity = "";
        Long start, end;

        String docContent = document.getContent().toString();

        ArrayList<String> ListStrings = new ArrayList(); //Array de Strings que usaremos para no vovler a imprimir un premio que ya haya sido imprimido.

        for (int i = 0; i < ListEn.size(); i++) {
            Ent = ListEn.get(i);

            start = Ent.getStartNode().getOffset();
            end = Ent.getEndNode().getOffset();
            WordEntity = docContent.substring(start.intValue(), end.intValue());

            if (!ListStrings.contains(WordEntity)) {//Si no esta en la lista lo imprimimos
                //StringEntity = StringEntity + WordEntity + "\n";
                ListStrings.add(WordEntity);
            }

        }

        Collections.sort(ListStrings);
        for (int j = 0; j < ListStrings.size(); j++) {
            StringEntity = StringEntity + ListStrings.get(j) + "\n";
        }

        return StringEntity;

    }