<http://webisa.webdatacommons.org/321270136>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<backwoodshome.com> .
<http://webisa.webdatacommons.org/321270136>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/395641956>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/321270136> .
<http://webisa.webdatacommons.org/321270136>	<http://www.w3.org/ns/prov#value>	"Of course, used books are a moving target, and what is in the collection is in constant revision as books are brought in and sold." .