<http://webisa.webdatacommons.org/prov/404292821>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/297057448> .
<http://webisa.webdatacommons.org/297057448>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<wikibooks.org> .
<http://webisa.webdatacommons.org/297057448>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/297057448>	<http://www.w3.org/ns/prov#value>	"The guidelines in this chapter support the use of protected types to encapsulate and synchronize access to shared data." .