<http://webisa.webdatacommons.org/concept/yttrium+oxide_y2o3_>	<http://www.w3.org/2000/01/rdf-schema#label>	"yttrium oxide y2o3" .
<http://webisa.webdatacommons.org/concept/yttrium+oxide_y2o3_>	<http://webisa.webdatacommons.org/ontology#hasPreModifier>	"yttrium oxide" .
<http://webisa.webdatacommons.org/concept/yttrium+oxide_y2o3_>	<http://webisa.webdatacommons.org/ontology#hasHead>	"y2o3" .