diff --git a/officina/999999999/0/999999999_7200235.py b/officina/999999999/0/999999999_7200235.py
index 87e0488..62a1722 100755
--- a/officina/999999999/0/999999999_7200235.py
+++ b/officina/999999999/0/999999999_7200235.py
@@ -63,6 +63,7 @@
     # hxltm_sine_columnis,
     hxltm_ex_selectis,
     hxltm_index_praeparationi,
+    numerordinatio_descendentibus,
     numerordinatio_progenitori,
     qhxl_hxlhashtag_2_bcp47,
     HXLTMAdRDFSimplicis,
@@ -1086,7 +1087,7 @@ def hxltm_carricato__cod_ab_levels(
 
 
 def hxltm_carricato__cod_ab_levels_ttl(
-    caput: list, data: list, numerordinatio_praefixo: str = '1603_45_16'
+    caput: list, data: list, numerordinatio_praefixo: str = '1603:45:16'
 ) -> list:
     """hxltm_carricato__cod_ab_levels filter cod_ab_index into a list of levels
 
@@ -1100,17 +1101,43 @@ def hxltm_carricato__cod_ab_levels_ttl(
     """
     paginae = []
 
-    print('caput', caput)
+    # note, on this case, we get an list already with only the root
+    # items, so we have to deal with
 
     # https://www.wikidata.org/wiki/EntitySchema:E49
 
-    # paginae.append('# [{0}]'.format(
-    #     numerordinatio_progenitori(numerordinatio_praefixo, ':')))
-    # paginae.append('@prefix skos: <http://www.w3.org/2004/02/skos/core#> .')
+    basi = numerordinatio_neo_separatum(numerordinatio_praefixo, ':')
+
+
+#     <urn:1603:63:101> a skos:ConceptScheme ;
+#   skos:prefLabel "1603:63:101"@mul-Zyyy-x-n1603 .
 
-    # for linea in data:
-    #     paginae.append('<urn:{0}>'.format(linea[0]))
+    collectio = map(lambda x: x[0], data)
+    collectio_sine_ordo = set(map(
+        lambda x: numerordinatio_progenitori(x, ':'), collectio))
+    # print(collectio_sine_ordo)
+
+    paginae.append('# [{0}]'.format(basi))
+    paginae.append('@prefix skos: <http://www.w3.org/2004/02/skos/core#> .')
+    paginae.append('')
+    paginae.append("<urn:{0}> a skos:ConceptScheme ; \n"
+                   "  skos:prefLabel \"{0}\"@mul-Zyyy-x-n1603 .".format(
+                       basi))
+    paginae.append("  skos:hasTopConcept\n    {0} .".format(
+        " ,\n    ".join(map(lambda x: f'<urn:{x}>', collectio_sine_ordo ))
+    ))
+    for linea in data:
+        progenitori = numerordinatio_progenitori(linea[0], ':')
+        descendentibus = numerordinatio_descendentibus(
+            progenitori, collectio, 1)
+        # paginae.append('<urn:{0}>'.format(linea[0]))
     #     paginae.append('  # {0}'.format(str(linea)))
+    # <urn:1603:45:16:76:0>
+    # # ['1603:45:16:76:0', '76', 0, 'BRA', 'BR']
+    # <urn:1603:45:16:76:1>
+    # # ['1603:45:16:76:1', '76', 1, 'BRA', 'BR']
+    # <urn:1603:45:16:76:2>
+    # # ['1603:45:16:76:2', '76', 2, 'BRA', 'BR']
 
     return paginae
 
diff --git a/officina/999999999/0/L999999999_0.py b/officina/999999999/0/L999999999_0.py
index 5dd54f2..241cea1 100644
--- a/officina/999999999/0/L999999999_0.py
+++ b/officina/999999999/0/L999999999_0.py
@@ -670,9 +670,9 @@ def praeparatio_identitas_locali(self):
         if pcode_index is None:
             raise SyntaxError(
                 '{0} not in (hxltm)<{1}>/(hxl)<{2}>(csv){3}'.format(
-                pcode_hashtag, self.caput_hxltm,
-                self.caput_hxl, self.caput_originali
-            ))
+                    pcode_hashtag, self.caput_hxltm,
+                    self.caput_hxl, self.caput_originali
+                ))
         # pcode_index = self.caput_hxltm.index(pcode_hashtag)
 
         self.caput_hxltm.insert(0, '#item+conceptum+codicem')
@@ -688,8 +688,8 @@ def praeparatio_identitas_locali(self):
                 # Ex. 31 ad BR31
                 pcode_numeri = pcode_completo.replace(self.pcode_praefixo, '')
 
-                ## Ex: Haiti admin3Pcode HT0111-01, HT0111-02, HT0111-03
-                pcode_numeri = re.sub('[^0-9]','', pcode_numeri)
+                # Ex: Haiti admin3Pcode HT0111-01, HT0111-02, HT0111-03
+                pcode_numeri = re.sub('[^0-9]', '', pcode_numeri)
 
                 try:
                     linea_novae.append(int(pcode_numeri))
@@ -2832,6 +2832,44 @@ def qhxl_hxlhashtag_2_bcp47(
     return bcp47_simplici
 
 
+def numerordinatio_descendentibus(
+        numerordinatio: str, collectio: list, ordo_maximo: int = None) -> list:
+    """numerordinatio_descendentibus _summary_
+
+    Trivia:
+     - collēctiō, s, f, , nominativus
+    - dēscendentibus, pl, m/f/n, , dativus,
+        https://en.wiktionary.org/wiki/descendens#Latin
+    - ōrdō, s, m, nominativus, https://en.wiktionary.org/wiki/ordo#Latin
+    - ōrdinī, s, m, dativus,
+    - maximō, s, m/n, dativus, https://en.wiktionary.org/wiki/maximus#Latin
+
+    Args:
+        numerordinatio (str): _description_
+        collectio (list): _description_
+        ordo_maximo (int, optional): _description_. Defaults to None.
+
+    Returns:
+        list: _description_
+    """
+
+    resultatum = []
+
+    if ordo_maximo is not None:
+        ordo_maximo = ordo_maximo + numerordinatio_ordo(numerordinatio)
+
+    for item in collectio:
+        if item.startswith(numerordinatio) and item != numerordinatio:
+            if ordo_maximo is None:
+                resultatum.append(item)
+            else:
+                item_ordini = numerordinatio_ordo(item)
+                if item_ordini <= ordo_maximo:
+                    resultatum.append(item)
+
+    return resultatum
+
+
 def numerordinatio_neo_separatum(
         numerordinatio: str, separatum: str = "_") -> str:
     resultatum = ''