http://premon.fbk.eu/resource/pb31-tough.02@arg1 an entity of type: Concept skos:definition difficult entity (may require concatenation) pmopb:core xsd:boolean 1 rdf:type skos:Concept pmo:SemanticRole pmopb:SemanticRole pmopb:tag pmopb:tag-pag pmopb:argument pmopb:arg1 data from the linked data cloud