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@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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    bf:subject [ a bf:Topic,
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    bf:summary [ a bf:Summary ;
            rdfs:label "Contains images, maps, movies, and data from all surveys the Pacific Seafloor Mapping Project has completed up to January 1999. Contains shaded relief of bathymetry, backscatter, oblique and 3-D views, and QuickTime movies. Also contains ARC/INFO export (.e00) files and full-resolution TIFF images of all sites that can be downloaded and used in many GIS packages." ] ;
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            bf:mainTitle "Sea-floor images and data from multibeam surveys in San Francisco Bay, Southern California, Hawaii, the Gulf of Mexico, and Lake Tahoe, California-Nevada" ],
        [ a bf:VariantTitle ;
            bf:mainTitle "Pacific Sea-Floor Mapping Project, multibeam survey images and data" ;
            bf:note [ a bf:Note ;
                    rdfs:label "Title from spine of container" ] ] .