_:vb50809787	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50809789 .
_:vb50809789	<http://www.w3.org/ns/r2rml#column>	"determination_jahr" .
_:vb50809787	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50809788 .
_:vb50809788	<http://www.w3.org/ns/r2rml#constant>	<http://rs.tdwg.org/dwc/terms/dateIdentified> .