human
Find all geometry WKT values that do not match a recognized type (e.g., not containing 'POINT', 'LINESTRING', or 'POLYGON').
gpt
```sparql
PREFIX geo:  <http://www.opengis.net/ont/geosparql#>
PREFIX :     <http://example.org/ontology#>
PREFIX rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT ?geom ?wkt
WHERE {
  ?feat :hasGeometry ?geom .
  ?geom geo:asWKT ?wkt .
  FILTER(
    !regex(?wkt, "POINT|LINESTRING|POLYGON", "i")
  )
}
```