_:vb50966748	<http://www.w3.org/ns/r2rml#constant>	<http://demo.openlinksw.com/schemas/NorthwindDemo/reportsto> .
_:vb50966749	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50966750 .
_:vb50966750	<http://www.w3.org/ns/r2rml#column>	"ReportsTo" .
_:vb50966749	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50966748 .