About: http://webisa.webdatacommons.org/52511641

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	The base ring 102, on its top surface, has a deep channel or cavity 106, approximately 1??? deep by 2??? wide (of course other dimensions and shapes other than a 1??? by 2??? rectangle can be used), about midway around its circumference.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com