<http://webisa.webdatacommons.org/prov/60719553>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/163635426> .
<http://webisa.webdatacommons.org/163635426>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<cogprints.org> .
<http://webisa.webdatacommons.org/163635426>	<http://www.w3.org/ns/prov#value>	"not have properties such as hardness, solidity and weight; physical objects" .
<http://webisa.webdatacommons.org/163635426>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .