@prefix dc:        <http://purl.org/dc/elements/1.1/> .
@prefix vcard:     <http://www.w3.org/2001/vcard-rdf/3.0#> .
@prefix ns:        <http://example.org/ns#> .

@prefix :          <http://example.org/book/> .

# This data is intentionaly irregular (e.g. different ways to
# record the book creator) as if the information is either an
# aggregation or was created at different times.

:book1
    dc:title    "Harry Potter and the Philosopher's Stone" ;
    dc:creator  "J.K. Rowling" ;
    .
    
:book2
    dc:title    "Harry Potter and the Chamber of Secrets" ;
    dc:creator  _:a .
    
:book3
    dc:title    "Harry Potter and the Prisoner Of Azkaban" ;
    dc:creator  _:a .
    
:book4
    dc:title    "Harry Potter and the Goblet of Fire" .
    
:book5
    dc:title    "Harry Potter and the Order of the Phoenix".
    

_:a
    vcard:FN "J.K. Rowling" ;
    vcard:N
        [ vcard:Family "Rowling" ;
          vcard:Given "Joanna" 
        ]
    .