_:vb50968441	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50968442 .
_:vb50968442	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"12" .
_:vb50968441	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50968443 .
_:vb50968443	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"12" .
_:vb50968441	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"12" .
_:vb50968443	<http://www.w3.org/ns/r2rml#column>	"CategoryID" .
_:vb50968442	<http://www.w3.org/ns/r2rml#constant>	<http://demo.openlinksw.com/schemas/NorthwindQA/categoryid> .