Alistair Miles Sean Bechhofer SKOS XL Vocabulary Participants in W3C's Semantic Web Deployment Working Group. An RDF vocabulary extending SKOS and allowing the description and linking of lexical entities. Label A special class of lexical entities. 1 literal form The property skosxl:literalForm is used to give the literal form of an skosxl:Label. If two instances of the class skosxl:Label have the same literal form, they are not necessarily the same resource. The range of skosxl:literalForm is the class of RDF plain literals. preferred label The property skosxl:prefLabel is used to associate an skosxl:Label with a skos:Concept. The property is analogous to skos:prefLabel. If C skosxl:prefLabel L and L skosxl:literalForm V, then X skos:prefLabel V. alternative label The property skosxl:altLabel is used to associate an skosxl:Label with a skos:Concept. The property is analogous to skos:altLabel. If C skosxl:altLabel L and L skosxl:literalForm V, then X skos:altLabel V. hidden label The property skosxl:hiddenLabel is used to associate an skosxl:Label with a skos:Concept. The property is analogous to skos:hiddenLabel. If C skosxl:hiddenLabel L and L skosxl:literalForm V, then C skos:hiddenLabel V. label relation The property skosxl:labelRelation is used for representing binary ('direct') relations between instances of the class skosxl:Label. skosxl:labelRelation is not intended to be used directly, but rather as the basis for a design pattern which can be refined for more specific labeling scenarios.