_:vb50714017	<http://www.w3.org/ns/r2rml#language>	"de" .
_:vb50714017	<http://www.openlinksw.com/schemas/virtrdf#bnode-row>	"57" .
_:vb50714017	<http://www.w3.org/ns/r2rml#column>	"system_de" .