<http://webisa.webdatacommons.org/243087515>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ctheory.net> .
<http://webisa.webdatacommons.org/243087515>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/172031819>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/243087515> .
<http://webisa.webdatacommons.org/243087515>	<http://www.w3.org/ns/prov#value>	"nodes themselves are particular kinds of edges." .