About: http://webisa.webdatacommons.org/403346902

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	Today, they are made from many different types of materials, including steel wire baskets filled with rocks and geosynthetics.
http://www.w3.org/ns/prov#wasQuotedFrom	typepad.com