About: http://webisa.webdatacommons.org/438472552

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 FIG. 2A, numeral 2a represents a base material, numeral 2b designates a copper foil or a plated copper film, and numeral 2c denotes a resin, such as an epoxy resin, filling through-holes in the base material 2a.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com