schema:issn leaf node

@prefix bibo: <http://purl.org/ontology/bibo/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix schema: <https://schema.org/> .

schema:issn a rdf:Property ;
    rdfs:label "issn" ;
    rdfs:comment "The International Standard Serial Number (ISSN) that identifies this serial publication. You can repeat this property to identify different formats of, or the linking ISSN (ISSN-L) for, this serial publication." ;
    rdfs:subPropertyOf schema:identifier ;
    owl:equivalentProperty bibo:issn ;
    schema:contributor <https://schema.org/docs/collab/bibex> ;
    schema:domainIncludes schema:Blog,
        schema:CreativeWorkSeries,
        schema:Dataset,
        schema:WebSite ;
    schema:rangeIncludes schema:Text .