_:b1218437	<http://www.w3.org/2002/07/owl#annotatedSource>	<http://purl.obolibrary.org/obo/ENVO_01000282> .
_:b1218437	<http://www.geneontology.org/formats/oboInOwl#hasDbXref>	"Wikipedia:Stratum"^^<http://www.w3.org/2001/XMLSchema#string> .
_:b1218437	<http://www.w3.org/2002/07/owl#annotatedProperty>	<http://purl.obolibrary.org/obo/IAO_0000115> .
_:b1218437	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Axiom> .
_:b1218437	<http://www.w3.org/2002/07/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."^^<http://www.w3.org/2001/XMLSchema#string> .