About: http://webisa.webdatacommons.org/281199022

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	The underside of each of these layers is provided with a thin layer 4, 5, and 6, respectively, of a material being impervious to liquid, for example, a sheet of cellulose hydrate or other plastic, such as cellophane.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com