human
331) Show addresses that have geometry referencing 'UNKNOWN' SRID or shape.
gpt
```sparql
PREFIX geo:<http://www.opengis.net/ont/geosparql#>
PREFIX :   <http://example.org/ontology#>

SELECT ?addr
WHERE {
  ?addr a :Address ;
        :hasGeometry ?geom .
  ?geom geo:asWKT ?wkt .
  FILTER regex(?wkt, "UNKNOWN", "i")
}
```