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

<https://stage.bcld.info/works/33273212-3b99-472f-9e9d-c8a0b0766ed1> a bf:Monograph,
        bf:Text,
        bf:Work ;
    bflc:aap "United States. Board of Engineers for Rivers and Harbors. The port of Boston, Massachusetts" ;
    bflc:aap-normalized "unitedstatesboardofengineersforriversandharborstheportofbostonmassachusetts" ;
    bf:adminMetadata [ a bf:AdminMetadata ;
            bf:agent <http://id.loc.gov/vocabulary/organizations/cbc> ;
            bf:date "2026-09-11T20:18:11.538323+00:00"^^xsd:dateTime ;
            bf:derivedFrom <http://id.loc.gov/resources/works/6432034> ;
            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:classification [ a bf:ClassificationLcc ;
            bf:assigner <http://id.loc.gov/vocabulary/organizations/dlc> ;
            bf:classificationPortion "HE554.B6" ;
            bf:itemPortion "A6 1936" ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/uba> ] ;
    bf:content <http://id.loc.gov/vocabulary/contentTypes/txt> ;
    bf:contribution [ a bf:Contribution ;
            bf:agent [ a bf:Agent,
                        bf:Jurisdiction ;
                    rdfs:label "United States. Shipping board bureau." ;
                    bflc:marcKey "7101 $aUnited States.$bShipping board bureau." ] ;
            bf:role <http://id.loc.gov/vocabulary/relators/ctb> ],
        [ a bf:Contribution,
                bf:PrimaryContribution ;
            bf:agent <http://id.loc.gov/rwo/agents/n79124711> ;
            bf:role <http://id.loc.gov/vocabulary/relators/aut> ] ;
    bf:geographicCoverage <http://id.loc.gov/vocabulary/geographicAreas/n-us-ma> ;
    bf:hasInstance <https://stage.bcld.info/instances/defab91e-2bf3-4372-9be7-1ff103061ae3> ;
    bf:illustrativeContent <http://id.loc.gov/vocabulary/millus/ill>,
        <http://id.loc.gov/vocabulary/millus/map>,
        <http://id.loc.gov/vocabulary/millus/plt> ;
    bf:language <http://id.loc.gov/vocabulary/languages/eng> ;
    bf:subject <http://id.loc.gov/authorities/subjects/sh94002605> ;
    bf:title [ a bf:Title ;
            bflc:nonSortNum "4" ;
            bf:mainTitle "The port of Boston, Massachusetts" ] .