_:vb51063618	<http://www.w3.org/ns/r2rml#constant>	<http://www.openlinksw.com/ontology/recruitment#firstName> .
_:vb51063617	<http://www.w3.org/ns/r2rml#objectMap>	_:vb51063619 .
_:vb51063619	<http://www.w3.org/ns/r2rml#column>	"first_name" .
_:vb51063617	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb51063618 .