<http://webisa.webdatacommons.org/78044397>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<archive.org> .
<http://webisa.webdatacommons.org/78044397>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/299094367>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/78044397> .
<http://webisa.webdatacommons.org/78044397>	<http://www.w3.org/ns/prov#value>	"So far we have defined a n only when n is a positive integer." .