human
Find the earliest year among all Construction.
gpt
```sparql
PREFIX :      <http://example.org/ontology#>
PREFIX rdf:   <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT (MIN(?year) AS ?earliest)
WHERE {
  ?c rdf:type :Construction ;
     :hasConstructionYear ?year .
}
```