_:vb50790402	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50790403 .
_:vb50790401	<http://www.w3.org/ns/r2rml#constant>	<http://demo.openlinksw.com/schemas/nfl/ischallengereversed> .
_:vb50790402	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50790401 .
_:vb50790403	<http://www.w3.org/ns/r2rml#column>	"IsChallengeReversed" .
_:vb50790403	<http://www.w3.org/ns/r2rml#datatype>	<http://www.w3.org/2001/XMLSchema#boolean> .