About: http://webisa.webdatacommons.org/325720359

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	However, no reefs have been built because of debates about the productivity of reefs built from structural steel and concern about such issues as hazards to navigation and liability.
http://www.w3.org/ns/prov#wasQuotedFrom	ca.gov