_:vb50994369	<http://www.w3.org/ns/r2rml#column>	"created_at" .
_:vb50994367	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50994368 .
_:vb50994368	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"77" .
_:vb50994367	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"77" .
_:vb50994369	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"77" .
_:vb50994367	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50994369 .
_:vb50994368	<http://www.w3.org/ns/r2rml#constant>	<http://www.openlinksw.com/schemas/crunchbase#createdAt> .