About: http://webisa.webdatacommons.org/191475559

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	from very fine compacted chalk, the edges are well defined except for the head which is a little overgrown.
http://www.w3.org/ns/prov#wasQuotedFrom	hows.org.uk