About: http://webisa.webdatacommons.org/455454843

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	Such rocks as these are very treacherous and not easily detected, except by sweeping the bottom with a line and weights.
http://www.w3.org/ns/prov#wasQuotedFrom	darwin-online.org.uk