Question: What is the highest volcano in Africa?
SPARQL:
PREFIX dbo: <http://dbpedia.org/ontology/>PREFIX res: <http://dbpedia.org/resource/>PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>PREFIX yago: <http://dbpedia.org/clas/yago/> SELECT DISTINCT ?uri WHERE { ?uri rdf:type dbo:Volcano . ?uri dbo:locatedInArea ?area . ?area rdf:type yago:AfricanCountries . ?uri dbo:elevation ?elevation .}ORDER BY DESC(?elevation) OFSET 0 LIMIT 1