<http://webisa.webdatacommons.org/concept/_algebra_of+set>	<http://www.w3.org/2000/01/rdf-schema#label>	"algebra of set" .
<http://webisa.webdatacommons.org/concept/_algebra_of+set>	<http://webisa.webdatacommons.org/ontology#hasHead>	"algebra" .
<http://webisa.webdatacommons.org/concept/_algebra_of+set>	<http://webisa.webdatacommons.org/ontology#hasPostModifier>	"of set" .