<http://ogp.me/ns/class#boolean_str>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://www.w3.org/2001/XMLSchema#string> .
<http://ogp.me/ns/class#boolean_str>	<http://www.w3.org/2000/01/rdf-schema#comment>	"A string representation of a true or false value.  The lexical space contains: \"true\", \"false\", \"1\", and \"0\"." .
<http://ogp.me/ns/class#boolean_str>	<http://www.w3.org/2000/01/rdf-schema#isDefinedBy>	<http://ogp.me/ns/class#> .
<http://ogp.me/ns/class#boolean_str>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2000/01/rdf-schema#Datatype> .
<http://ogp.me/ns/class#boolean_str>	<http://www.w3.org/2000/01/rdf-schema#label>	"boolean string" .