_:vb50994619	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50994621 .
_:vb50994620	<http://www.w3.org/ns/r2rml#constant>	<http://schema.org/mainEntityOfPage> .
_:vb50994619	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"16" .
_:vb50994621	<http://www.w3.org/ns/r2rml#column>	"cb_url" .
_:vb50994619	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50994620 .
_:vb50994621	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"16" .
_:vb50994620	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"16" .