<http://webisa.webdatacommons.org/concept/_sum_of+each+couple%27>	<http://webisa.webdatacommons.org/ontology#hasHead>	"sum" .
<http://webisa.webdatacommons.org/concept/_sum_of+each+couple%27>	<http://webisa.webdatacommons.org/ontology#hasPostModifier>	"of each couple'" .
<http://webisa.webdatacommons.org/concept/_sum_of+each+couple%27>	<http://www.w3.org/2000/01/rdf-schema#label>	"sum of each couple'" .