http://purl.org/spar/fabio/ReferenceBook leaf node

@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix vann: <http://purl.org/vocab/vann/> .
@prefix vs: <http://www.w3.org/2003/06/sw-vocab-status/ns#> .

<http://purl.org/spar/fabio/ReferenceBook> a owl:Class ;
    rdfs:label "reference book"@en ;
    vann:example """
        :my-reference-book a fabio:ReferenceBook ;
            dcterms:title 'Oxford English Dictionary, 12th Edition'@en ;
            frbr:realizationOf :my-reference-work ;
            dcterms:description 'A book intended to be consulted for information rather than read from beginning to end.'@en .
    """ ;
    rdfs:comment "A book containing authoritative factual information, such as a dictionary, encyclopaedia, handbook or field guide, which is a realisation of a certain reference work and may contain several reference entries."@en ;
    rdfs:isDefinedBy <http://purl.org/spar/fabio/> ;
    rdfs:subClassOf [ a owl:Restriction ;
            owl:onProperty <http://purl.org/vocab/frbr/core#realizationOf> ;
            owl:someValuesFrom <http://purl.org/spar/fabio/ReferenceWork> ],
        <http://purl.org/spar/fabio/Book> ;
    vs:term_status <http://purl.org/linked-data/registry#statusStable> .