_:vb50713901	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"19" .
_:vb50713901	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50713903 .
_:vb50713903	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"19" .
_:vb50713902	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"19" .
_:vb50713903	<http://www.w3.org/ns/r2rml#column>	"ID" .
_:vb50713901	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50713902 .
_:vb50713902	<http://www.w3.org/ns/r2rml#constant>	<http://rs.tdwg.org/dwc/terms/catalogNumber> .