SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/builder> <http://dbpedia.org/resource/Concor_Holdings> . ?x <http://dbpedia.org/property/crosses> ?uri . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Bridge>}
Over what do Concor holdings have a bridge?
SELECT DISTINCT ?m WHERE { ?z property:crosses ?m . ?z property:builder resource:Concor_Holdings . ?z rdf:type ontology:Bridge }
Zambezi
The river crossed by the bridge which was built by Concor Holdings is [Zambezi].
The river over which the bridge built by Concorde Holdings flows is [Zambezi].