Question: Give me all animals that are extinct.
SPARQL query:
PREFIX onto: <http://dbpedia.org/ontology/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
SELECT DISTINCT ?uri
WHERE {
        ?uri rdf:type onto:Animal .
        ?uri onto:conservationStatus "EX"@en .
}