human
Retrieve roads typed as geo:Feature but no :hasGeometry property.
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 ?road
WHERE {
  ?road rdf:type :Road , geo:Feature .
  FILTER NOT EXISTS { ?road :hasGeometry ?g }
}
```