_:vb50911359	<http://www.w3.org/ns/r2rml#column>	"ip_address" .
_:vb50911357	<http://www.w3.org/ns/r2rml#constant>	<http://demo.openlinksw.com/schemas/DB/ip_address> .
_:vb50911358	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50911357 .
_:vb50911358	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50911359 .