the PG metadata, boiled down

pg20728.simple.yaml

# Project Gutenberg Metadata
pgterms:ebook: 
    url: http://www.gutenberg.org/ebooks/20728
    marcrel:ill: 
    -   pgterms:agent: http://www.gutenberg.org/2009/agents/25396
        pgterms:alias:
          - Schoenherr, John (John Carl)
          - Schoenherr, Jack
        pgterms:birthdate: 1935
        pgterms:deathdate: 2010
        pgterms:name: Schoenherr, John
        pgterms:webpage: 
        -   url: http://en.wikipedia.org/wiki/John_Schoenherr
            dcterms:description: Wikipedia
    
    dcterms:creator: 
    -   pgterms:agent: http://www.gutenberg.org/2009/agents/8301
        pgterms:alias: Piper, Henry Beam
        pgterms:birthdate: 1904
        pgterms:deathdate: 1964
        pgterms:name: Piper, H. Beam
        pgterms:webpage: 
        -   url: http://en.wikipedia.org/wiki/H._Beam_Piper
            dcterms:description: Wikipedia

    dcterms:issued: '2007-03-03'
    dcterms:language: !dcterms:RFC4646 en
    dcterms:license: http://www.gutenberg.org/license
    dcterms:publisher: Project Gutenberg
    dcterms:rights: Public domain in the USA.
    dcterms:subject:
    - !dcterms:LCSH Space warfare -- Fiction
    - !dcterms:LCSH Revenge -- Fiction
    - !dcterms:LCC PS
    - !dcterms:LCSH Science fiction
    dcterms:title: Space Viking
    dcterms:type: !dcterms:DCMIType Text
    pgterms:downloads: 299