_:vb50958467	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50958469 .
_:vb50958468	<http://www.w3.org/ns/r2rml#constant>	<http://demo.openlinksw.com/schemas/csv_copy/username> .
_:vb50958468	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"13" .
_:vb50958469	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"13" .
_:vb50958467	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50958468 .
_:vb50958467	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"13" .
_:vb50958469	<http://www.w3.org/ns/r2rml#column>	"username" .