@prefix rdf:	<http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix owl:	<http://www.w3.org/2002/07/owl#> .
_:b1218437	rdf:type	owl:Axiom .
@prefix xsd:	<http://www.w3.org/2001/XMLSchema#> .
@prefix obo:	<http://www.geneontology.org/formats/oboInOwl#> .
_:b1218437	obo:hasDbXref	"Wikipedia:Stratum"^^xsd:string .
@prefix ns4:	<http://purl.obolibrary.org/obo/> .
_:b1218437	owl:annotatedProperty	ns4:IAO_0000115 ;
	owl:annotatedSource	ns4:ENVO_01000282 ;
	owl:annotatedTarget	"A stratum is a layer which is composed of sedimentary rock or soil with internally consistent characteristics that distinguish it from other layers."^^xsd:string .