Question: Give me a list of all critically endangered birds.
SPARQL query:
PREFIX dct: <http://purl.org/dc/terms/>
PREFIX dbc: <http://dbpedia.org/resource/Category:>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri ?p WHERE { ?uri a onto:Bird . { ?uri onto:conservationStatus 'CR'^^<http://www.w3.org/2001/XMLSchema#string> . } UNION { ?uri dct:subject dbc:Critically_endangered_animals . } }