<http://webisa.webdatacommons.org/concept/_none_of+study>	<http://webisa.webdatacommons.org/ontology#hasHead>	"none" .
<http://webisa.webdatacommons.org/concept/_none_of+study>	<http://webisa.webdatacommons.org/ontology#hasPostModifier>	"of study" .
<http://webisa.webdatacommons.org/concept/_none_of+study>	<http://www.w3.org/2000/01/rdf-schema#label>	"none of study" .