is expression of leaf node

@prefix dct: <http://purl.org/dc/terms/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sio: <http://semanticscience.org/resource/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

sio:isExpressionOf a owl:ObjectProperty ;
    rdfs:label "is expression of"@en ;
    dct:description "is expression of is a relation between more concrete expression of some conceptualization."@en ;
    rdfs:isDefinedBy <http://semanticscience.org/ontology/sio/v1.53/sio-subset-labels.owl> ;
    rdfs:subPropertyOf sio:isGenericallyRelatedWith ;
    skos:example "every language edition of 'war of the worlds' are expressions of the story of 'war of the worlds'"@en .