About: http://webisa.webdatacommons.org/57583727

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	Density is a measure of how ???light??? or ???heavy??? an object is for its size.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com