About: http://webisa.webdatacommons.org/74655407

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	Layer 22 may be applied to sheet 20 as an ink, i.e. carbon and/or graphite contained in an appropriate binder.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com