About: http://webisa.webdatacommons.org/217247151

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	To protect its soft vulnerable body against natural enemies, mollusks secrete a substance, consisting of mainly calcium carbonate and hardening into material, which is similar to marble with respect to solidity.
http://www.w3.org/ns/prov#wasQuotedFrom	freakingnews.com