_:vb50717353	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50717352 .
_:vb50717353	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50717354 .
_:vb50717352	<http://www.w3.org/ns/r2rml#constant>	<http:/schema.org/identifier> .
_:vb50717354	<http://www.w3.org/ns/r2rml#column>	"hid" .