Question: Which river flows through Hudson Highlands State park and also through Troy, New york ?
SPARQL:
 SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Hudson_Highlands_State_Park> <http://dbpedia.org/property/river> ?uri. <http://dbpedia.org/resource/Troy,_New_York> <http://dbpedia.org/ontology/river> ?uri}