<http://webisa.webdatacommons.org/concept/procedure_volume_>	<http://webisa.webdatacommons.org/ontology#hasPreModifier>	"procedure" .
<http://webisa.webdatacommons.org/concept/procedure_volume_>	<http://webisa.webdatacommons.org/ontology#hasHead>	"volume" .
<http://webisa.webdatacommons.org/concept/procedure_volume_>	<http://www.w3.org/2000/01/rdf-schema#label>	"procedure volume" .