<http://webisa.webdatacommons.org/concept/of_opera_>	<http://webisa.webdatacommons.org/ontology#hasPreModifier>	"of" .
<http://webisa.webdatacommons.org/concept/of_opera_>	<http://www.w3.org/2000/01/rdf-schema#label>	"of opera" .
<http://webisa.webdatacommons.org/concept/of_opera_>	<http://webisa.webdatacommons.org/ontology#hasHead>	"opera" .