_:vb50417440	<http://www.w3.org/ns/r2rml#column>	"geburtstag" .
_:vb50417439	<http://www.w3.org/ns/r2rml#predicate>	<http://schema.org/birthDate> .
_:vb50417439	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50417440 .