About: http://webisa.webdatacommons.org/4320029

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	Maintenance of a barrier system requires an influx of sand, provided naturally by rivers such as the Mississippi.
http://www.w3.org/ns/prov#wasQuotedFrom	underwatertimes.com