About: http://webisa.webdatacommons.org/41711094

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	In one alternative, the membrane is a layer of relatively impermeable natural material, laid within the indigenous soil.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es