@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/b41e9dfc-6d92-41e5-96b5-2389dbf7effe> a bf:Instance ;
    bf:acquisitionSource [ a bf:AcquisitionSource ;
            rdfs:label "Bureau of Mines Bldg., Herran St." ] ;
    bf:adminMetadata [ a bf:AdminMetadata ;
            bf:agent <http://id.loc.gov/vocabulary/organizations/cbc> ;
            bf:date "2026-09-11T20:16:06.880859+00:00"^^xsd:dateTime ;
            bf:derivedFrom <http://id.loc.gov/resources/instances/11192300> ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/c> ],
        [ 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/> ] ;
    bf:carrier <http://id.loc.gov/vocabulary/carriers/nc> ;
    bf:dimensions "25 cm" ;
    bf:extent [ a bf:Extent ;
            rdfs:label "volumes" ;
            bf:note [ a bf:Note,
                        <http://id.loc.gov/vocabulary/mnotetype/physical> ;
                    rdfs:label "illustrations" ] ] ;
    bf:frequency <http://id.loc.gov/vocabulary/frequencies/qrt> ;
    bf:identifiedBy [ a bf:Local ;
            bf:source <http://id.loc.gov/vocabulary/organizations/uk> ;
            rdf:value "015993418" ],
        [ a bf:Local ;
            bf:source <http://id.loc.gov/vocabulary/organizations/uk> ;
            rdf:value "008892409" ],
        [ a bf:Local ;
            bf:source <http://id.loc.gov/vocabulary/organizations/de-101> ;
            rdf:value "015741710" ],
        [ a bf:Local ;
            bf:source <http://id.loc.gov/vocabulary/organizations/de-600> ;
            rdf:value "1042089-7" ],
        [ a bf:Coden ;
            rdf:value "JGSPB7" ],
        [ a bf:Lccn ;
            rdf:value "   75646903 " ] ;
    bf:instanceOf <https://stage.bcld.info/works/d1ecd7d0-c631-4fa4-acaa-3fa178453d6c> ;
    bf:issuance <http://id.loc.gov/vocabulary/issuance/serl> ;
    bf:media <http://id.loc.gov/vocabulary/mediaTypes/n> ;
    bf:note [ a bf:Note,
                <http://id.loc.gov/vocabulary/mnotetype/number> ;
            rdfs:label "v. 23, no. 2- June 1969-" ] ;
    bf:provisionActivity [ a bf:ProvisionActivity,
                bf:Publication ;
            bflc:simpleAgent "Geological Society of the Philippines" ;
            bflc:simplePlace "Manila" ;
            bf:date "1969/199X"^^<http://id.loc.gov/datatypes/edtf> ;
            bf:place <http://id.loc.gov/vocabulary/countries/ph> ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/ceased> ] ;
    bf:publicationStatement "Manila: Geological Society of the Philippines" ;
    bf:title [ a bf:Title ;
            bf:mainTitle "Journal of the Geological Society of the Philippines" ] .