Question: What is the longest river?
SPARQL:
PREFIX dbo: <http://dbpedia.org/ontology/> PREFIX dbp: <http://dbpedia.org/property/> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> SELECT DISTINCT ?uri WHERE { ?uri rdf:type dbo:River . { ?uri dbo:length ?l . } UNION { ?uri dbp:length ?l . } } ORDER BY DESC(?l) OFSET 0 LIMIT 1