<http://caligraph.org/ontology/River_navigation_in_the_United_Kingdom>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Inland_navigation> .
<http://caligraph.org/ontology/River_navigation_in_the_United_Kingdom>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/River_navigation_in_the_United_Kingdom>	<http://www.w3.org/2000/01/rdf-schema#label>	"River navigation in the United Kingdom" .
<http://caligraph.org/ontology/River_navigation_in_the_United_Kingdom>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:River_navigations_in_the_United_Kingdom> .