@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#> .

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    rdfs:label "Coal liquefaction" ;
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            bf:source <http://id.loc.gov/vocabulary/classSchemes/sudocs> ] ;
    bf:contribution [ a bf:Contribution ;
            bf:agent [ a bf:Agent,
                        bf:Jurisdiction ;
                    rdfs:label "United States. Division of Coal Conversion." ;
                    bflc:marcKey "7101 $aUnited States.$bDivision of Coal Conversion." ] ;
            bf:role <http://id.loc.gov/vocabulary/relators/ctb> ] ;
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    bf:language <http://id.loc.gov/vocabulary/languages/eng> ;
    bf:title [ a bf:KeyTitle ;
            bf:mainTitle "Coal liquefaction" ],
        [ a bf:Title ;
            bf:mainTitle "Coal liquefaction" ] .