About: http://webisa.webdatacommons.org/438971012

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	in the shape of medium, for example, depending upon whether it is a sphere or a rectangular parallelepiped.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com