_:vb50966736	<http://www.w3.org/ns/r2rml#constant>	<http://demo.openlinksw.com/schemas/NorthwindDemo/countrycode> .
_:vb50966738	<http://www.w3.org/ns/r2rml#column>	"CountryCode" .
_:vb50966737	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50966738 .
_:vb50966737	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50966736 .