About: http://webisa.webdatacommons.org/258545685

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	A platform reef may or may not lie behind a barrier reef and may undergo elongation if established on a sandbank.Reefs grow actively outward as well as upward, especially in the stable conditions of a continental shelf.
http://www.w3.org/ns/prov#wasQuotedFrom	britannica.com