@prefix bf: <http://id.loc.gov/ontologies/bibframe/> .
@prefix bflc: <http://id.loc.gov/ontologies/bflc/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://stage.bcld.info/instances/1ad0b29d-df17-4b35-93e6-2d6da78012e8> a bf:Instance ;
    bf:adminMetadata [ a bf:AdminMetadata ;
            bflc:catalogerId "Unknown" ;
            bf:date "2026-09-11" ;
            bf:descriptionAuthentication <http://id.loc.gov/vocabulary/marcauthen/pcc> ;
            bf:descriptionLanguage <http://id.loc.gov/vocabulary/languages/eng> ;
            bf:descriptionLevel <http://id.loc.gov/ontologies/bibframe-2-6-0/> ],
        [ a bf:AdminMetadata ;
            bf:agent <http://id.loc.gov/vocabulary/organizations/cbc> ;
            bf:date "2026-09-11T20:16:31.792090+00:00"^^xsd:dateTime ;
            bf:derivedFrom <http://id.loc.gov/resources/instances/18510357> ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/c> ] ;
    bf:carrier <http://id.loc.gov/vocabulary/carriers/nc> ;
    bf:copyrightDate "2011"^^<http://id.loc.gov/datatypes/edtf> ;
    bf:dimensions "42 cm" ;
    bf:editionStatement "Full score" ;
    bf:extent [ a bf:Extent ;
            rdfs:label "1 score (204 pages)" ] ;
    bf:identifiedBy [ a bf:MusicPublisherNumber ;
            bf:assigner [ a bf:Organization ;
                    rdfs:label "Novello" ] ;
            rdf:value "NOV 200904" ],
        [ a bf:Lccn ;
            rdf:value "  2015394083" ] ;
    bf:instanceOf <https://stage.bcld.info/works/c9e1ecd2-2139-439e-8507-fe06e7ad769e> ;
    bf:issuance <http://id.loc.gov/vocabulary/issuance/mono> ;
    bf:media <http://id.loc.gov/vocabulary/mediaTypes/n> ;
    bf:note [ a bf:Note ;
            rdfs:label "Duration: approximately 75 min." ] ;
    bf:provisionActivity [ a bf:ProvisionActivity,
                bf:Publication ;
            bflc:simpleAgent "Novello" ;
            bflc:simpleDate "[2013]" ;
            bflc:simplePlace "London" ;
            bf:date "2013"^^<http://id.loc.gov/datatypes/edtf> ;
            bf:place <http://id.loc.gov/vocabulary/countries/enk> ] ;
    bf:publicationStatement "London: Novello, [2013]" ;
    bf:responsibilityStatement "Tarik O'Regan ; libretto: Tom Phillips ; after the novella by Joseph Conrad" ;
    bf:title [ a bf:Title ;
            bf:mainTitle "Heart of darkness" ;
            bf:subtitle "an opera in one act, 2011" ] .