About: http://webisa.webdatacommons.org/156726601

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	Sedimentary rocks such as chalk can form steep or vertical cliffs when the chalk is harder than usual.
http://www.w3.org/ns/prov#wasQuotedFrom	geography-site.co.uk