<http://webisa.webdatacommons.org/prov/405795282>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/277086234> .
<http://webisa.webdatacommons.org/277086234>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/277086234>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<mathforum.org> .
<http://webisa.webdatacommons.org/prov/125003343>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/277086234> .
<http://webisa.webdatacommons.org/277086234>	<http://www.w3.org/ns/prov#value>	"Old-fashioned newsgroups seem to be evolving into Web-based discussions, which allows all the material to be archived, searched, and viewed in various ways, such as by thread or date or author." .