About: http://webisa.webdatacommons.org/308689798

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In a third independent facet or aspect, the invention is a system for determining and using presence of ink that is invisible to an optical sensor.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com