PREFIX geo: <http://www.opengis.net/ont/geosparql#>
PREFIX geof: <http://www.opengis.net/def/function/geosparql/>
PREFIX virtrdf:	<http://www.openlinksw.com/schemas/virtrdf#> 
PREFIX poi: <http://www.openvoc.eu/poi#> 
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT ?Resource
FROM <http://www.sdi4apps.eu/poi.rdf>
WHERE {
  ?Resource poi:address	?address .
}
GROUP BY ?Resource
HAVING(COUNT(?address) > 1)