<http://webisa.webdatacommons.org/260587906>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<sourceforge.net> .
<http://webisa.webdatacommons.org/260587906>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/260587906>	<http://www.w3.org/ns/prov#value>	"It is typically a star schema, which is a set of tables in a relational database; later, we shall see examples of other kinds of mappings." .
<http://webisa.webdatacommons.org/prov/438033446>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/260587906> .