<http://purl.obolibrary.org/obo/RO_0002383>	<http://purl.obolibrary.org/obo/IAO_0000115>	"x proper_tributary_of y iff x tributary_of y and x does not originate from y" .
<http://purl.obolibrary.org/obo/RO_0002383>	<http://www.geneontology.org/formats/oboInOwl#inSubset>	<http://purl.obolibrary.org/obo/ro/subsets#ro-eco> .
<http://purl.obolibrary.org/obo/RO_0002383>	<http://www.w3.org/2000/01/rdf-schema#label>	"proper tributary of"@en .
<http://purl.obolibrary.org/obo/RO_0002383>	<http://purl.obolibrary.org/obo/IAO_0000114>	<http://purl.obolibrary.org/obo/IAO_0000428> .
<http://purl.obolibrary.org/obo/RO_0002383>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#ObjectProperty> .
<http://purl.obolibrary.org/obo/RO_0002383>	<http://www.w3.org/2000/01/rdf-schema#subPropertyOf>	<http://purl.obolibrary.org/obo/RO_0002376> .
<http://purl.obolibrary.org/obo/RO_0002383>	<http://purl.obolibrary.org/obo/IAO_0000117>	"Chris Mungall" .