Question: In which state can I find Burr Truss styled bridges?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/style> <http://dbpedia.org/resource/Burr_Truss> . ?x <http://dbpedia.org/ontology/state> ?uri . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Bridge>}