human
List roads along with their construction year and geometry if available.
gpt
```sparql
PREFIX :     <http://example.org/ontology#>
PREFIX rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT ?road ?year ?geom
WHERE {
  ?road rdf:type :Road .
  OPTIONAL {
    ?road :hasConstructionYear ?year .
  }
  OPTIONAL {
    ?road :hasGeometry ?geom .
  }
}
```