About: http://webisa.webdatacommons.org/222216315

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	Preferably the elements are interlocked by a rigid member such as a rod, tube, wire or the like extending through or into the engaged formations.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com