http://www.w3.org/2004/02/skos/core#prefLabel
Property skos:prefLabel

owl:AnnotationProperty

rdf:Property

skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties.

The range of skos:prefLabel is the class of RDF plain literals.

A resource has no more than one value of skos:prefLabel per language tag.

http://www.w3.org/2004/02/skos/core

preferred label

rdfs:label

The preferred lexical label for a resource, in a given language.