About: http://webisa.webdatacommons.org/368578036

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	At least one of the upper and lower portions comprises a rigid material, such as plastic, glass, wood, and metal.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com