This ontology defines the core elements of the Venice time machine data model, specifically regarding material of textual nature. Core Data Model Ontology Source An information object with a digital representation. isComponentOf http://www.ontologydesignpatterns.org/cp/owl/componency.owl#isComponentOf refersTo This property indicates the entity a mention refers to. isMentionedIn This property indicates the source were a mention occurs. referredBy This property indicates the mention an entity is referred by. http://dkm.fbk.eu/ontologies/knowledgestore#Entity Entity Cf. the 'KnowledgeStore Core Data Model ontology' definition "Any identifiable entity in the domain of discourse, extracted from text and/or imported from some source of background knowledge." hasComponent http://www.ontologydesignpatterns.org/cp/owl/componency.owl#hasComponent hasMention This property indicates the mention which occur in a source. http://dkm.fbk.eu/ontologies/knowledgestore#Mention Mention Fragment of an information object (source) which refer to an entity.