look for more labels in model

services/stats/queries/quantity.query

-SELECT ?label (COUNT(?class) AS ?total) WHERE {
+SELECT SAMPLE(?label) (COUNT(?class) AS ?total) WHERE {
 GRAPH <urn:x-arq:UnionGraph>  {
 ?s a ?class .
 #?class rdfs:label ?label . 
@@ -9,9 +9,9 @@ FILTER(?class NOT IN (ubbont:DigitalResource, ore:Aggregation, ubbont:Page)).
 }
 GRAPH ubbont:ubbont {
 ?class rdfs:label ?label .
-FILTER(LANG(?label) = "")
+FILTER(LANG(?label) = "" || LANG(?label)="nb")
 }
 }
-GROUP BY ?label
+GROUP BY ?s
 HAVING (COUNT(?class) > 1)
 ORDER BY desc(?total)