<http://webisa.webdatacommons.org/16812319>	<http://www.w3.org/ns/prov#value>	"One that I puzzled over for quite some time was a piece of flat translucent flexible plastic with a wide magnetic rubber ring aroung it." .
<http://webisa.webdatacommons.org/prov/91171365>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/16812319> .
<http://webisa.webdatacommons.org/16812319>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/16812319>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<blogspot.com> .