<http://webisa.webdatacommons.org/403732477>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/472210591>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/403732477> .
<http://webisa.webdatacommons.org/403732477>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<digitalmars.com> .
<http://webisa.webdatacommons.org/403732477>	<http://www.w3.org/ns/prov#value>	"Now 'a' is a variable, just as much 'c' is." .