_:vb50809838	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50809839 .
_:vb50809838	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50809840 .
_:vb50809840	<http://www.w3.org/ns/r2rml#language>	"de" .
_:vb50809840	<http://www.w3.org/ns/r2rml#column>	"zone_de" .
_:vb50809839	<http://www.w3.org/ns/r2rml#constant>	<http://rs.tdwg.org/dwc/terms/lowestBiostratigraphicZone> .