]> An alias of a named entity, usually not a general term but rather a name of something. Specific names, such as John and Smith, are not aliased on themselves. However, "John Smith" and "Mr. Smith" could be. Any sort of an entity of interest, usually something existing, happening, or purely abstract. Entities may have several - more than one - names or aliases. A particular source where the entity (description) is derived/imported/extracted from. Can be used for maintenance of knowledge bases where information from multiple sources is being imported. A lexical resource of any sort, usually part of a natural language or a specialized vocabulary. The rdf:label property defines the character string constituting the resource. To identify a source (like a program or a module), which is capable of recognizing and generating new entities. Typically, those are not checked, and thus not trustable. An example for this is the NE-recognition process in KIM/GATE. Used to indicate entities, imported from reliable (trusted) sources, like GNS, World Fact Book, GATE/MUSE/KIM gazetteers, but also any other trusted source. The system classes and properties are used to encode system specific information. Those, as well as their instances and related information, should usually not be presented to the end-user. In practice, user-interface and visualization modules, can filter such primitives. All system primitives with this property should be marked with string value "T". Makes possible the modelling of a specific, but rather useful modelling pattern. The semantics is defined with the following axiom: (p,transitiveOver,q) (x,p,y) (y,q,z) => (x,p,z). Sample usage is: (locatedIn, transitiveOver, subRegionOf) (Ontotext,locatedIn,Bulgaria) (Bulgaria,subRegionOf,Europe) => (Ontotext,locatedIn,Europe). The intended domain and range of this property are owl:ObjectProperty; those are not formally specified, in order not to get the ontology outside the OWL DL segment. A textual description of an entity. Usually a free text in some natural language. As defined in DC2003ISO for InformationResources. In a sense, it is a specializatoin of rdf:comment An extremely short (typically, single sentence) description of an entity Identifies the party that introduced the entity into the KB. The official (or otherwise most important) alias of the entity