human
Return the geometry WKT for all constructions that have geometry.
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 ?constr ?wkt
WHERE {
  ?constr rdf:type :Construction ;
          :hasGeometry ?geom .
  ?geom geo:asWKT ?wkt .
}
```