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Prefix	Namespace IRI
n3	http://purl.obolibrary.org/obo/
obo	http://www.geneontology.org/formats/oboInOwl#
rdf	http://www.w3.org/1999/02/22-rdf-syntax-ns#
owl	http://www.w3.org/2002/07/owl#
xsdh	http://www.w3.org/2001/XMLSchema#

Subject Item: _:vb1215168
rdf:type: owl:Axiom
obo:hasDbXref: USGS:SDTS
owl:annotatedProperty: n3:IAO_0000115
owl:annotatedSource: n3:ENVO_00000034
owl:annotatedTarget: An area of broken, fast flowing water in a stream, where the slope of the bed increases (but without a prominent break of slope which might result in a waterfall), or where a gently dipping bar of harder rock outcrops.