_:vb50911321	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50911320 .
_:vb50911321	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50911322 .
_:vb50911320	<http://www.w3.org/ns/r2rml#constant>	<http://demo.openlinksw.com/schemas/DB/ip_address> .
_:vb50911322	<http://www.w3.org/ns/r2rml#column>	"ip_address" .