<http://webisa.webdatacommons.org/prov/54332350>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/168457080> .
<http://webisa.webdatacommons.org/168457080>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/516201880>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/168457080> .
<http://webisa.webdatacommons.org/168457080>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ietf.org> .
<http://webisa.webdatacommons.org/168457080>	<http://www.w3.org/ns/prov#value>	" [RFC1994], N is a text string, A,A1,A2, and I are numbers, and C" .