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	xml:base="http://www.hackcraft.net/bookrdf/vocab/0_1/">
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		rdfs:comment="A book (for small values of “book”, give it an ISBN and we’re happy).">
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	<owl:Class
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	<owl:Class rdf:about="Publisher"
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	<owl:Class rdf:about="CoverImage"
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		<rdfs:domain rdf:resource="Book"/> 
		<rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Literal"/> 
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	<rdf:Property rdf:about="authoredBy"
		rdfs:label="Authored By"
		rdfs:comment="An author of this book.">
		<rdfs:subPropertyOf rdf:resource="http://purl.org/dc/elements/1.1/creator"/>
		<rdfs:subPropertyOf rdf:resource="http://xmlns.com/foaf/0.1/maker"/>
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		<rdfs:range rdf:resource="Author"/> 
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		rdfs:comment="A webpage from which the book can be bought.">
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		<rdfs:range rdf:resource="http://xmlns.com/foaf/0.1/Document"/> 
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	<rdf:Property rdf:about="reviewed"
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		<rdfs:subPropertyOf rdf:resource="http://purl.org/dc/elements/1.1/description"/>
		<rdfs:domain rdf:resource="Book"/>
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	<rdf:Property rdf:about="similarTo"
		rdfs:label="Similar To"
		rdfs:comment="A similar book to this one (based on categorisation and purchase patterns).">
		<rdfs:subPropertyOf rdf:resource="http://purl.org/dc/elements/1.1/relation"/>
		<rdfs:domain rdf:resource="Book"/>
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