_:vb50711995	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50711997 .
_:vb50711996	<http://www.w3.org/ns/r2rml#constant>	<http://rs.tdwg.org/dwc/terms/catalogNumber> .
_:vb50711995	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50711996 .
_:vb50711997	<http://www.w3.org/ns/r2rml#column>	"ID" .