About: http://webisa.webdatacommons.org/153641432

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	It is optional whether the faces of the cubes are exposed to an air interface or coated with a reflective coating, such as aluminum.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk