human
Find roads constructed before 2000.
gpt
```sparql
PREFIX :    <http://example.org/ontology#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT ?road
WHERE {
  ?road rdf:type :Road ;
        :hasConstructionYear ?year .
  FILTER(?year < 2000)
}
```