_:vb50992559	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"50" .
_:vb50992559	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50992560 .
_:vb50992561	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"50" .
_:vb50992559	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50992561 .
_:vb50992560	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"50" .
_:vb50992561	<http://www.w3.org/ns/r2rml#column>	"created_at" .
_:vb50992560	<http://www.w3.org/ns/r2rml#constant>	<http://www.openlinksw.com/schemas/crunchbase#createdAt> .