SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/property/design> <http://dbpedia.org/resource/Box_girder_bridge> . ?x <http://dbpedia.org/property/crosses> ?uri . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/River>}
How many rivers are crossed by different Box Girder bridges?
SELECT DISTINCT COUNT ( ?o ) WHERE { ?v property:design resource:Box_girder_bridge . ?v property:crosses ?o . ?o rdf:type ontology:River }
79
There are [79] rivers crossed by Box Girder bridges.
Different Box Girder bridges crossed [79] bridges.