_:vb50791155	<http://www.w3.org/ns/r2rml#constant>	<http://demo.openlinksw.com/schemas/nfl/ischallengereversed> .
_:vb50791156	<http://www.w3.org/ns/r2rml#column>	"IsChallengeReversed" .
_:vb50791154	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50791155 .
_:vb50791154	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50791156 .
_:vb50791156	<http://www.w3.org/ns/r2rml#datatype>	<http://www.w3.org/2001/XMLSchema#boolean> .