About: http://webisa.webdatacommons.org/312282953

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	It is to be understood that any other dense and heavy material such as rocks, etc. may be utilized as the weighting medium.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com