_:vb39689	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb39690 .
_:vb39691	<http://www.w3.org/ns/r2rml#language>	"de" .
_:vb39689	<http://www.w3.org/ns/r2rml#objectMap>	_:vb39691 .
_:vb39691	<http://www.w3.org/ns/r2rml#column>	"system_de" .
_:vb39690	<http://www.w3.org/ns/r2rml#constant>	<http://rs.tdwg.org/dwc/terms/earliestPeriodOrLowestSystem> .