<http://webisa.webdatacommons.org/concept/modify_ptfe_>	<http://webisa.webdatacommons.org/ontology#hasHead>	"ptfe" .
<http://webisa.webdatacommons.org/concept/modify_ptfe_>	<http://webisa.webdatacommons.org/ontology#hasPreModifier>	"modify" .
<http://webisa.webdatacommons.org/concept/modify_ptfe_>	<http://www.w3.org/2000/01/rdf-schema#label>	"modify ptfe" .