About: http://webisa.webdatacommons.org/321032717

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	High efficiency volume reflection holograms are typically produced in materials such as dichromated gelatin or photopolymers coated on a hard transparent substrate such as glass or plastic.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com