About: http://webisa.webdatacommons.org/238590273

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 much mass is contained in a specified volume of a material (density = mass/volume).
http://www.w3.org/ns/prov#wasQuotedFrom	usra.edu