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