human
Count how many roads do not have an address.
gpt
```sparql
PREFIX :     <http://example.org/ontology#>
PREFIX rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT (COUNT(?road) AS ?count)
WHERE {
  ?road rdf:type :Road .
  FILTER NOT EXISTS {
    ?road :hasAddress ?addr .
  }
}
```