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