_:vb50966734	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50966733 .
_:vb50966733	<http://www.w3.org/ns/r2rml#constant>	<http://demo.openlinksw.com/schemas/NorthwindDemo/country> .
_:vb50966734	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50966735 .
_:vb50966735	<http://www.w3.org/ns/r2rml#column>	"Country" .