<http://caligraph.org/ontology/Tributary_of_the_Mississippi_River>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/River_tributary> .
<http://caligraph.org/ontology/Tributary_of_the_Tigris>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/River_tributary> .
<http://caligraph.org/ontology/Tributary_of_the_Fraser_River>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/River_tributary> .
<http://caligraph.org/ontology/River_tributary_of_the_United_States>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/River_tributary> .
<http://caligraph.org/ontology/River_tributary>	<http://www.w3.org/2000/01/rdf-schema#label>	"River tributary" .
<http://caligraph.org/ontology/Tributary_of_the_River_Tees>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/River_tributary> .
<http://caligraph.org/ontology/Tributary_of_the_Danube>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/River_tributary> .
<http://caligraph.org/ontology/Tributary_of_the_River_Ribble>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/River_tributary> .
<http://caligraph.org/ontology/Tributary_of_the_Chao_Phraya_River>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/River_tributary> .
<http://caligraph.org/ontology/Tributary_of_the_Niger>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/River_tributary> .
<http://caligraph.org/ontology/River_tributary>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/River_tributary>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/River> .
<http://caligraph.org/ontology/River_tributary>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Lists_of_river_tributaries> .
<http://caligraph.org/ontology/Tributary_of_the_R%C3%ADo_de_la_Plata>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/River_tributary> .
<http://caligraph.org/ontology/Tributary_of_the_Loire>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/River_tributary> .