_:vb50809504	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50809506 .
_:vb50809506	<http://www.w3.org/ns/r2rml#column>	"Column_2" .
_:vb50809505	<http://www.w3.org/ns/r2rml#constant>	<http://www.w3.org/2000/01/rdf-schema#label> .
_:vb50809504	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50809505 .