human
List addresses that have missing or empty street name.
gpt
```sparql
PREFIX :       <http://example.org/ontology#>
PREFIX rdf:    <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT ?addr
WHERE {
  ?addr rdf:type :Address .
  FILTER NOT EXISTS {
    ?addr :hasStreetName ?name .
  }
}
```