<http://webisa.webdatacommons.org/86023683>	<http://www.w3.org/ns/prov#value>	"There is no extension for b-tree that I know of but if you use Visual LISP you can use ActiveX objects and thus access most types of databases." .
<http://webisa.webdatacommons.org/prov/480027981>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/86023683> .
<http://webisa.webdatacommons.org/86023683>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<stackoverflow.com> .
<http://webisa.webdatacommons.org/86023683>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .