<http://webisa.webdatacommons.org/88308459>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/88308459>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<physicsforums.com> .
<http://webisa.webdatacommons.org/prov/53995650>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/88308459> .
<http://webisa.webdatacommons.org/88308459>	<http://www.w3.org/ns/prov#value>	"is something that can only be applied when x is a positive number." .