Question: Does the Isar flow into a lake?
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#>
ASK
WHERE {
        ?x dbo:inflow res:Isar .
        ?x rdf:type dbo:Lake . 
}