_:vb50968516	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50968518 .
_:vb50968516	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50968517 .
_:vb50968517	<http://www.w3.org/ns/r2rml#constant>	<http://demo.openlinksw.com/schemas/NorthwindQA/birthdate> .
_:vb50968518	<http://www.w3.org/ns/r2rml#column>	"BirthDate" .
_:vb50968518	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"43" .
_:vb50968517	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"43" .
_:vb50968516	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"43" .