{"@context":"https://schema.org","@type":"Class","@id":"https://schema.org/PublicationEvent","rdfs:label":"PublicationEvent","rdfs:comment":"A PublicationEvent corresponds indifferently to the event of publication for a CreativeWork of any type, e.g. a broadcast event, an on-demand event, a book/journal publication via a variety of delivery media.","rdfs:subClassOf":[{"@id":"https://schema.org/Event"}],"schema:properties":["free","publishedBy","publishedOn"],"schema:subTypes":["BroadcastEvent","OnDemandEvent"]}