http://premon.fbk.eu/resource/pb31-compulsory.01@arg2 an entity of type: Concept skos:definition Required-of, compulsory for whom? pmopb:core xsd:boolean 1 rdf:type skos:Concept pmo:SemanticRole pmopb:SemanticRole pmopb:tag pmopb:argm-dir pmopb:argument pmopb:arg2 data from the linked data cloud